weight loss help!

I need some help, I'm 19 now and have struggled with binge eating disorder and bulimia from being 11, I've been in therapy and worked on the mental reasons and even though I'm no longer binging and purging I am still really unhealthy. I'm really overweight and it's making me feel so bad about myself. I have no confidence and even though I'm in a serious relationship (engaged) and know my fiancé loves me and thinks I'm beautiful I feel like he thinks I'm ugly. I know how healthy eating works and I know what's good and what's not but I just feel shitty about myself. Idek what I'm asking for I just feel shit. If you read this I really appreciate it. I'm sorry for ranting and I don't really have much of a point... any advice is greatly appreciated x