21 and I don’t know what to do with my life

I don’t know what to do honestly. I feel like my life has no purpose right now. I can’t seem to figure out what’s wrong. I’m in college with a hurry to finish to land a job I really don’t want. I’m so confused. I’ve always had these big dreams of being in theater and being an actress. And did plays and stuff in school but my parents never thought it was important for me, nobody in my family ever showed up to my plays or asked me how I did. I always told my mom I wanted to audition since I was like 5 years old and they never supported the idea cause it wasn’t realistic. Here I am a housewife studying online unhappy. I have no motivation and no courage to do what I want because I’m afraid of what people will think of me. I’m just tired honestly, I’m tired of being so unhappy. And now in a marriage that I sometimes regret. It sounds horrible I know, I never thought I would be in this situation. Please be kind with your comments, i will appreciate any advice.