I need to vent

I had a huge post ready, it was all over the place. I complained so much. I feel so bad, but I have no one to vent to y'all. I don't complain out loud. I bitch to my fiancé sometimes and that helps but I feel bad because I'm venting about his fam 😓 He agrees with me but I still feel bad. I love them, but I feel so stuck. We're still living with his parents and every time we get money saved up ready to move out, something happens. His mom has stress induced seizures and a spending problem. So when her and her husband are short on cash, we've had to step in. We can't even get our vehicle legal. I feel so stuck and so helpless 😭😭 I don't think it'd be so bad if everyone got along but my fiancé's younger brother is ridiculously rude. He starts fights all the time with anyone who will give him a reaction. And he's so mean to his mom. I have to literally bite my tongue so much. I just don't know how to deal with all this stress. I guess I just need to know that things get better 😔