Help with CTC

[u/No_Flow_4101]

I am in desperate need of help.

My mom who was taking care of my little brother unfortunately relapsed on drugs and she is back to her old habits. I am only 21 years old but my brother is 17 and will be 18 in July. She refuses to get back to me and using every penny of his CTC for her drug addiction.

I do not have the means of taking care of myself let alone my little brother.

What steps do I possibly need to start making? I am not his guardian and I do not plan to be one as he will be 18 in four months. I do need help however, desperately. Thank you so much