I can understand where you are coming from raspberrycupcake I have been a virtual recluse for years due to my mental health issues, binge eating etc etc and pushed away all my friends and family, put off meeting up with anyone really but my friends and family luckily didn't give up on me which I am thankful for as I pushed them all away so much that I could have totally forgiven them for washing their hands of me. I let my insecurities about my weight / binge eating isolate me and on top of that my severe mental health issues made me feel like a complete failure, I pretty much hated myself, didn't want to go on living and sought help through various therapies yet most weren't of much help. I didn't want to go out at all and be around men for years due to the sexual abuse and I felt the best place for me was either at home locked away or dead. I am finally finding due to the DBT sessions that I am turning my life around, I am finally realising that I need to get out more and I still find it so hard as I'm so insecure and get so anxious yet since I have been doing it my life feels much more worth living again, I now enjoy meals out with friends and family, trips to the cinema, theatre etc , at first I was super anxious but as time has gone on I am being more "mindful" and managing to be in the moment and not feel so anxious also for me especially the theatre has always been a really big love of mine yet for years I wouldn't go, what if I was too big for the seats? or just being around people, now I use any spare money I have to treat myself to theatre tickets or use b'day and Christmas money for them as I love seeing the plays and musicals. I have never been good at treating myself , always put much more focus on treating everyone else so this is my way of to quote the hair product ads "you're worth it", something my therapist tries drilling into me each session.
It is difficult to do this and to realise that you are worthwhile and deserve treats but when you are insecure and have very low self esteem this can seem like a big fat lie yet it isn't and its worth working towards, just baby steps, a little at a time, little treats, short meetings with people, maybe just a coffee, just to get you out and meeting people again, nothing too long or too daunting, my psych always drills into me "baby steps" as I tend to be all or nothing, either total recluse or push myself too much, the middle road is much better!
Em xx