I took my mum's money and played poker with it. I paid it back but now she won't talk to me
Is your mother still mad at you for taking her money?
Well she thinks the whole thing was shady, which it is.
Your mother should forgive you, as you paid her back. It is wrong to not forgive. A parent should have unconditional love for their child no matter what, or even which gender they are too. Was it an urgent thing to take the money in the first place?
It was an emergency because I needed to pay my rent.
Well, that explains it. I hope you mention that to your mom so she eventually forgives you as she should.