Tips for dealing with insecurities /u/Both_Relationship412 Sex

I (28M) have been seeing my gf (27F) for 10 months now. I’ve had 2 long term gfs (mostly sexless) previously and a handful of situationships/ONS so not completely inexperienced. Early on when dating my current gf she was very open in talking about previous sexual exploits (e.g. sex at work, anal, bondage, making sex tapes). This is way beyond anything I’ve ever done. She also mentioned how she had a body count note on her phone and needed her friend to help her remember everyone. Another thing is she mentioned her flatmate really wanted a threesome with a guy she dated recently before me, but has said she doesn’t now with me, so I can only assume they were talking about how good he was in bed.

I didn’t really care about any of this early on in dating, but now I’ve developed strong feelings I really can’t help thinking that nothing I ever do is going to be good/fun/exciting/new. Every few weeks/months I will get what I call an insecurity spiral where I can’t think about anything else but how much worse I must be compared to what she’s had/done before and I end up feeling super shitty, sometimes bringing her down with me. It’s kind of hard to bring this up without it feeling like I’m slut shaming her which isn’t my intention at all. She reassures me she’s happy and I know how stupid it must sound to her. Any tips for dealing with this?

I (28M) have been seeing my gf (27F) for 10 months now. I’ve had 2 long term gfs (mostly sexless) previously and a handful of situationships/ONS so not completely inexperienced. Early on when dating my current gf she was very open in talking about previous sexual exploits (e.g. sex at work, anal, bondage, making sex tapes). This is way beyond anything I’ve ever done. She also mentioned how she had a body count note on her phone and needed her friend to help her remember everyone. Another thing is she mentioned her flatmate really wanted a threesome with a guy she dated recently before me, but has said she doesn’t now with me, so I can only assume they were talking about how good he was in bed.

I didn’t really care about any of this early on in dating, but now I’ve developed strong feelings I really can’t help thinking that nothing I ever do is going to be good/fun/exciting/new. Every few weeks/months I will get what I call an insecurity spiral where I can’t think about anything else but how much worse I must be compared to what she’s had/done before and I end up feeling super shitty, sometimes bringing her down with me. It’s kind of hard to bring this up without it feeling like I’m slut shaming her which isn’t my intention at all. She reassures me she’s happy and I know how stupid it must sound to her. Any tips for dealing with this?