I know you have your history with your brother, and I know I don't know what that history is, but something to consider as an aside to this question -- sibling relationships are literally the longest you will have in your life. Your parents will die, your children won't be born until you're halfway through, siblings are the ones that last through 99% of your lifespan. It might be worth considering looking past your siblings flaws to have a relationship with them -- that said I don't know what your specific sibling relationship is like, so take this with whatever amount of salt you'd like. —
Sidney 1 min ago