When Everything Feels Like It's Falling Apart

Assalamu alaikum. I went through really tough times back in high school when I was 15. My parents found out I was in a relationship that wasn't appropriate and took away a lot of my freedoms. I felt completely numb, sad, and angry, and I stopped doing all the things I loved. I thought transferring schools would give me a fresh start, but I was still struggling a lot. I started failing my classes and eventually realized I needed to turn things around. I worked on myself, started dressing more modestly like I used to, studied hard, and alhamdulillah, I got into university and graduated. Later, I developed feelings for someone, and when he found out, he just laughed at me. That really shattered my confidence and made me see myself in a very negative light. My first semester at university became miserable-all my friends were at a different school, I gained weight, had skin issues, and even my hair started thinning. I decided to transfer to be closer to my friends and tried again to improve my life. But my parents became even more controlling, and I also lost my financial aid and scholarships. I still tried to stay positive, got a job, and worked over 40 hours a week at minimum wage to pay my tuition, but my grades started to slip. At the same time, I struggled spiritually and became inconsistent with my salah and faith. I tried to improve by going to the gym and studying more, but my confidence never really returned. My GPA dropped, and even when I decided to do better the next semester, tuition went up, I had to work more hours, and my grades fell again. My parents' control really started to wear me down. I felt lonely and isolated, but I kept pushing forward. Recently, during a test I wasn't prepared for, I made a poor choice and got caught. Now I'm under review, and I feel awful for involving someone else and possibly causing them harm. It feels like everything I worked so hard for is crumbling because of one mistake. I feel numb and alone. I just want to be loved and live a peaceful life. Is that too much to ask? Am I a bad person?