How am i supposed to fix my life

There is something in my brain that is constantly annoying me and reminding me about my miserable life. Every day, I wake up exhausted and go to school feeling like my mental health is getting worse and that I can't do much about it. I can't find a solution to the problems in my life. My grades are falling apart, I am extremely unhappy with how I look, my family is struggling, and even taking a shower feels like a major task. It feels like nothing is going to change the fact that I'm not athletic, and I feel like I have no friends.

I always advise people to worship God and be believers, even though I barely pray and sometimes struggle with doubts. I tell people to always be kind, even though I often have trouble controlling my emotions and reactions. I tell people to stay strong, even though I often feel hopeless myself. I know what the right way of living is, but sometimes it feels impossible to fix everything.

Even when I try to ignore these thoughts, I keep feeling pressure to improve my life, especially during my lowest moments. Whenever I have tried to ask for help, I felt rejected or laughed at. Part of me feels like my situation is not entirely my fault, while another part of me blames myself because I keep giving in to habits and behaviors that I know are holding me back. I feel stuck between wanting to change and not knowing how to make that change happen.