Hello everyone!

I have had a look at the differences among "EARLY", "SOON" and "BEFORE", but I still have some doubts.
Could you correct me and explain me these sentences?
Could you correct and expalin these sentences for me?

- I have been in the UK for 3 months and I learnt the English soon. (correct sentence)
My attempts:
I have been in the UK for 3 months and I learnt the English early.
I have been in the UK for 3 months and I learnt the English earlier than expected.
is "before than expected" wrong??

Invented senteces:
It's so warm and sunny for February. Spring will come early this year.
It's so warm and sunny for February. Spring will come soon this year.

Peter soon got used to traveling. (Sentence found on Internet. Why is it correct???)
My attempts:
Peter will soon got used to travel.
Peter will got used to travel/to traveling soon.

The game got under way and soon it started raining. (sentence found on the internet)
My attempts:
The game got under way and it started to rain/raining soon.
(Why do we use "soon"? I know that I have to use it if I talk about the future)

She'll soon be as tall as her mother. (sentence found it on the Internet)
My attempt:
She'll be soon as tall as her mother.
She'll be as tall as her mother soon.

Sentences invented by myself:
I'll be home early. -----------> I come home every day at 5 pm. Tomorrow I'll back at 4 pm.
I'll be home soon. ------------> I'll arrive at home in 10 minutes.

I'll call you soon. --------> I'll do it in 1 hour.
I'll call you early. --------> I'll do it before than usual.

Before I cook then we can see each other.

I'm eating earlier than usual.  
I'm eating before than usual. Why is it wrong???

How soon is it till the exams? (sentence found on the Internet)
My attempts:
how soon are your exam?
How soon till the exams?


I have never seen Florence before now.
I didn't see Florence before now.

I have never seen Florence before then.
I didn't see Florence before then.


- Today we'll see you ealier, I just moved up an appointment.
- Today we'll see you earlier than usual.
- We must leave home earlier than yesterday. My bike is broken.

- We must leave home early. My bike is broken.
- We must leave home before. My bike is broken. (It's a wrong sentence, isn't it?)
- We must leave home earlier.
- We must leave home early.
- We must leave home before my father come back.
- We must leave home before. (It's a wrong sentence, isn't it?)
- I'll do it before eating that apple!
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Thanks for your time!
I hope I didn't annoy you!
Cheers