*also some mentions of SA*

I think about it constantly. There isn't a day or hour of the day where I don't think about it. I just wanna have sex with everyone, regardless of gender (I'm bi or something along those lines I think?). I also think about threesome and foursomes as well as obscure places to do it. But the thing is, I don't do anything about it? I'm too anxious to have sex with people as to recently and that's even more frustrating. I just wanna do it all the time.

I'm friends with my ex (yeah I know, I know..) and I almost can't be around him because I only think about having sex with him and he probably doesn't think the same thing, so I haven't mentioned it even though it's very tempting. I fanatisize about it with him all the time, probably because I've had sex with him before. I usually never fantasize these things about strangers, only people I have an emotional bond with or whom I've had sex with before. It's led me to believe I'm demisexual or even graysexual, but idk if that's just me being insecure or what. There's been this girl I've been seeing as well whom I've also fantasized about, but I've never had sex with a woman before, so that also leads to more insecurity and I don't think shes into it either.

But anyways, I think about it a lot. I've done this actually for many years and it's very frustrating since I usually don't do anything about it. I'm very scared of being sexually assulted if I end up with the wrong person (like if I were to ask a person on tinder to have sex for instance). I've never been assulted, I don't think atleast, but I hear about it too frequently that I feel like it can happened at any moment. It's led me to have loads of intrusive thoughts about it. 

So like, what do I do? I'm going to a therapist in not too long, but should I mention this? About my insecurities about sex? It's gonna be hard to talk about, but it's really ruining my chances of having it.