Dilemma!

It’s been nearly a year since I last had sex... and 5 years I’ve been single... I’d been faking the contraceptive pill for that time and since I’ve stopped taking it, I’m thinking about sex all the time... problem is, I’m massively lacking confidence and I’ve put weight on so I don’t feel confident that I’ll find anyone in the near future that wants me... I’ve got a date coming round tomorrow night but he’s way way out of my league and I just feel so nervous and embarrassed of myself... like why would he want anything sexual...