How can I improve my self esteem?

It starts with ignoring all you hear that is negative. Then you want to surround yourself with people that make you feel good about yourself and that you like being around because they genuinely care. Those are hard to find but they do exist. Self harming and things that put you down won't lead to positive results to make you better. So those need to go too. You're valuable and worth something, believe it because it's true.

Your dad has issues so they're his not yours. People don't abuse people when they're happy.

Pity your father. He has big, big issues. Take nothing he says personally. Have goals and focus/work on them so that in time too you can leave home and make a life for yourself. Know that you're OK! Like and support yourself

The choice is yours everytime you want to do harm to your self do something positive instead you have to reteach your self how to feel small victories will slowly add up and you will win

remove yourself from the abusive situation, then stop over eating and stop self harming

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