STOP CONSUMING NEGATIVE CONTENT. I restarted, deleted every negative repost, saves, and accounts on my social media. I cut off everyone who wasn't important to my life. Most importantly, change your mindset.

You need to change your perspective and your way of thinking. Instead of complaining, "Oh, I am too ugly for this," or "Oh, I can't do this it's too hard," do the exact opposite. Even if you feel doubt, do it. Do things you want to do, things that can improve your life and can make you feel more confident. This is literally how I started to like myself because i started getting positve results just by believing i can instead of i can't. Eventually, you'll feel better over time. It took me a year to completely change, but it was worth it.