1: You need a belief, an inner pillar, or a fixed entertainment. I suggest you believe in Buddhism. Be able to sort yourself out and make your heart calm. Participate in some activities with a group of partners, even square dance.
Keeping a certain distance from parents is not unfilial, but letting yourself live first. They don't raise children and animals, which is a bit excessive, but you haven't been regarded as an ordinary child.
But when your parents are old, sick and dead, you must do your duty to support them, so that your conscience can get by.
When we came into this world, we had a lot of helplessness. We can't choose our origins, relatives and families. I remember a saying that you came to this world only through your parents' bodies, but after all, you are you, an independent individual, and you have independent thoughts. It is impossible to do everything according to their ideas, and it is impossible to bear what you don't want and what they impose on you. You have the right to choose. You can be yourself.
3: Live well. Time can dilute everything. When your parents are really old. Maybe they will change.