It’s two questions:
1. It’s improper to blame your problems on your parents. It is also wrong for your parents to blame their problems on you. It is quite oftenly very difficult to figure out whose problems belong to whom.
2. You are “allowed” to “have taainas” on your upbringing. This doesn’t mean the taainas have merit. Moreover, “having taainas” is merely an emotional state of feeling hurt. Finally, as with the rest of life and perhaps moreso, just because one may have taainas, that doesn’t mean that it is prudent or productive to focus on them or to communicate them.