Are these sentences OK?
I don't like small and enclosed places.
Even I knew it was wrong, I did it for you.
That's how much I wanted to marry her / him.
How much I wanted this trip. / How badly I wanted this trip.
I can't tell you how much I want to be there.
I can't tell you how much I wanted to be there.

Question

Are these sentences OK?
I don't like small and enclosed places.
    Even I knew it was wrong, I did it for you.
    That's how much I wanted to marry her / him.
    How much I wanted this trip. / How badly I wanted this trip.
    I can't tell you how much I want to be there.
    I can't tell you how much I wanted to be there.

Answer

Delete the 'and' in 'small and enclosed', and replace it with a comma to make it more natural.
Even though I...
How much.../ How badly... are not sentences. They are only clauses.  You need to add something,  like:  "Do you know how....", "I told him how..."  if you do that, either 'much' or 'badly' are OK.

Answer

I don't like small and enclosed places. // maybe: 'enclosed, small spaces' is how I would phrase this.

Even I knew it was wrong, I did it for you. // Same as Gregorio: "Even though..."

Answer

Hello.

I would add a "though" after "even" in the second sentence: 
"Even though I knew it was wrong, I did it for you. I think that that would be the only thing I'd edit. Other than that yes, the sentenced are good.

Answer

Sorry, I answered the question here by accident.