Is therapy an option? Because dealing with resentment is a big chunk of their work.

If not, self-improvement books and podcasts. Brene Brown, Happiness Lab.

Learn about healthy boundaries. Boundaries are for you, not other people. That is, you can’t say “you can’t do that to me” because you only control yourself, not other people. So instead you can say “if you do that, I will do _____” and then do it. That’s putting you in control. Resentment can stem from lack of healthy boundaries.

Learn about mindfulness and practice it. Rumination on the past gets you stuck. Mindfulness has the benefits of helping you recognize your thoughts, giving you some distance from them, and anchoring yourself in the present. Mindfulness builds these muscles.

I don’t know your situation or what you resent so these are pretty scattershot recommendations. A trained therapist can help you identify the strategies that work for you and your situation. If you need help finding one, the directory on psychologytoday.com is great in the US.

NAACP has a list of companies committed to DEI: https://naacp.org/campaigns/black-consumer-advisory

Are you saying your parents started a running debt for you when you were born and expect you to repay them? That’s not normal and they have no legal means to enforce that debt. If you’re still a minor, contact protective services.