Argh when will I stop worrying?!

Had a mc last year at 6 weeks. I'm  8 weeks & 2 days saw babies heartbeat last Friday at 7 weeks 5 days ive been scared since my bfp thought my worrying would calm down after seeing baby but I'm still scared! Doesn't feel real don't feel pregnant & just got a horrid feeling ill mc again! Am I going insane anyone else feeling the same?