If you're still in the probation period, then yes it'll affect your chances. If you've completed the probation time then there's a chance for you to still be approved for citizenship. However it depends on the type of offense/crime you did.

It was a theift by swindle case in which I paid the money back an got it dismissed in which I got unsupervised probation

How long ago?

last year

I only did 15 day

USCIS will evaluate your good moral of character. Make sure you disclose any and all previous convictions on your N-400 form, even if your original criminal case was dismissed.

what the look for as far as character

I did the interview but then I didn’t have the disposition later so They ask for me too submit it

Make sure you submit all supporting docs.

ok so it’s 50/50 chance I’ll get it

I think you will be fine. Just don't lie and submit everything they ask. Good luck.