How Has Losing Weight Changed Your Life?

So I’m having a hard time with a breakup, It’s 5 months in I would say I’m better than I was but I have a lingering thought about her. I miss her so much and I found out she’s talking to another guy and it destroyed me mentally. I’ve been overweight for a long time now and I’ve been trying to go to gym and I’ve been in and out but I keep telling myself life won’t get better. I have a very good personality I am a confident speaker but I know that I’m not the best looking guy at all I’m worried that me losing weight won’t change my mental or help me finally be in a real relationship this last girl was the first girl I was with really. Will losing this weight and putting on mass change things for me? How has it changed for you? And yes I know I sound weak and lame asf but I just don’t know what to do anymore. I just wanna feel confident and be good looking…I’m just at an all time low.