Lostlove, Hi, welcome to PC> caring folks here. RE your question about learning to love yourself again, pick something you like about yourself, anything: talent, attribute, skill, and love yourself for it. Make a list of what you can do, when you get stuck, pick something and do it.

Learn to toss negative self talk into the grave of the relationship and choose to think up and say positive things, in the moment: throw out old, embrace new: train yourself, hard work, Breaking old habits is gut wrenchingly, lifechanginglyl hard, work. No shortcuts but, great benefits!
Plus, just hang out with people who treat you wtih respect.