TOO, TOO MUCH\MANY, VERY or ENOUGH
Generally, I hope I understand the meaning of these words. :) Although, I have some difficulties in usage of them.

I need to correct sentences with TOO, TOO MANY, TOO MUCH,ENOUGH and VERY.
There are examples of corrected sentences:
1. I liked the restaurant but the food wasn't enough. = I liked the restaurant but there wasn't enough food.
2. Experts say that fast food is not too much good for you. = Experts say that fast food is not very good for you.

Following sentences are with mistakes about TOO, TOO MANY, TOO MUCH,ENOUGH and VERY.

3. I don't have money enough to pay for your dinner.
= I don't have enough money to pay for your dinner.

4. We didn't like the hotel because it wasn't enough comfortable.
= We didn't like the hotel because it wasn't comfortable enough.

5. The food takes too much long to prepare so customers become impatient.
= The food takes too long to prepare so customers become impatient.

6. Some people suffer from doing too hard work.
= Some people suffer from doing very hard work.

7. It's too much cruel to keep animals in small cages.
= It's too cruel to keep animals in small cages.

8. It's not a sport too difficult, so I think you can learn it quite quickly.
= It's not a too difficult sport, so I think you can learn it quite quickly.

9. The bed was not too much comfortable.
= The bed was not comfortable enough.

10. I'm afraid the meal was too much expensive.
= I'm afraid the meal was too expensive.

Please, could you help me with these sentences?
What's the difference between "too" and "very"?
Does "Too"exaggerate following adjectives\adverbs more than "very"?
If I accidently corrected accurately I would be glad to learn more about cases in the 6th and the 7th sentences. I'm not sure if I know why I can't say "too hard work", for instance.
Thank you for attention!

Question

TOO, TOO MUCH\MANY, VERY or ENOUGH
Generally, I hope I understand the meaning of these words. :) Although, I have some difficulties in usage of them.

I need to correct sentences with TOO, TOO MANY, TOO MUCH,ENOUGH and VERY.
There are examples of corrected sentences:
1. I liked the restaurant but the food wasn't enough. => I liked the restaurant but there wasn't enough food.
2. Experts say that fast food is not too much good for you. => Experts say that fast food is not very good for you.

Following sentences are with mistakes about TOO, TOO MANY, TOO MUCH,ENOUGH and VERY.

3. I don't have money enough to pay for your dinner.
=> I don't have enough money to pay for your dinner.

4. We didn't like the hotel because it wasn't enough comfortable.
=> We didn't like the hotel because it wasn't comfortable enough.

5. The food takes too much long to prepare so customers become impatient. 
=> The food takes too long to prepare so customers become impatient.

6. Some people suffer from doing too hard work. 
=> Some people suffer from doing very hard work.

7. It's too much cruel to keep animals in small cages. 
=>  It's too cruel to keep animals in small cages.

8. It's not a sport too difficult, so I think you can learn it quite quickly.
=> It's not a too difficult sport, so I think you can learn it quite quickly.

9. The bed was not too much comfortable. 
=> The bed was not comfortable enough.

10. I'm afraid the meal was too much expensive. 
=>  I'm afraid the meal was too expensive.

Please, could you help me with these sentences? 
What's the difference between "too" and "very"? 
Does "Too"exaggerate following adjectives\adverbs more than "very"? 
If I accidently corrected accurately I would be glad to learn more about cases in the 6th and the 7th sentences. I'm not sure if I know why I can't say "too hard work", for instance.
Thank you for attention!

Answer

Those are pretty much fine! The only corrections I'd make is for 6, I think this is the desired meaning: "People suffer from doing too much hard work" and for 8, this flows better: "It's not too difficult a sport..." or "It's not a very difficult sport..." and for 10, what you said is fine too, but instead it might be: "The bed was not too comfortable" or "The bed was not very comfortable." 
The difference between "too" and "very".... ummm well "too" means "too much" of whatever word is following it. For example, if something is "very cold" it means just that, but if something is "too cold" it means it is more cold than what people can handle. Something that is "very expensive" may still be bought, but something that is "too expensive" will not be bought because there is not enough money to buy it. "Too" usually exaggerates the following word more because of that.
"Too hard work" That isn't used because it's describing the noun "work". If it was describing "hard" like in the sentence, "the work is too hard" it is okay because "hard" is an adjective, but it cannot be used to describe a noun.
 I hope this helps and wasn't too confusing? haha Good luck :)

Answer

In English when you use 'too' it is in a negative sense. 
Tea was too hot.  ( it was so hot that you didnt like it )
Pie was too sweet ( not to your liking )

That guy is very smart. ( smart in a good way )
That guy is too smart. ( smart is not so good way)

Answer

I would probably correct the sentence to read "Some people suffer from working too hard"

Comments in the earlier sentence before my correction:
doing = is the verb and work = is the noun (make it concise by simply saying "working")
usually the phrase "too much" is followed by a noun or a verb or a phrase (example: noun= too much work, too much candy, verb = too much reading, too much eating)
it is not incorrect to say "too much hard work", if you are talking about "hard work".  You are then inferring that too much 'regular work (or work)' is OK.

Just like saying "too much sweet candy", inferring that the issue is with "sweet candy" thereby inferring that 'regular candy (or candy) is ok.

I hope this helps :)

Answer

So, my correction of the 6th sentence isn't right. "Too much hard work"?