I feel like a horrible person

I am a 23 year old male
When i was younger i made some mistakes, mistakes that i regret DEEPLY. I have anxiety as well which makes everything so much worse..
Getting this off my chest helps me feel somewhat human again..

When i was 14 i was hanging out with a girl that i at the time had a huge crush on. Toward the end of the day we were horseplaying, i think she was trying to keep something away from me, but i enjoyed it seeing as i was attracted to her, and liked being close to her, which is what makes me feel like a sexual deviant since i purposely prolonged the horseplaying and ended up lying close to her because i liked the contact. I feel guilty 9 years later because of the thought "What if she didn't enjoy it? What if she saw this as an assault?" nothing bad happened afterward, and we were still friends.. i just cant stop feeling bad..


Another mistake is when i was 15..
All i could think of at that age was sex... so this girl and I decided to engage in sexting over a chat service.. about ourselves and others. I then not knowingly that it could be seen as a bad thing decided to try and expose myself over webcam, not just whipping it out... but by claiming that my webcam was broken, and that i spilled something on my pants, and if she saw something inappropriate she should let me know, as i didn't want to offend her.. (Believe me i REALLY didnt). I also asked her for nudes, which she angrily refused... I've later lied to her about sexual encounters to be cool..
The point here is that if feel so incredibly bad for quite clearly violating her boundaries, even though i have apologised to her later it still doesn't take away the feeling that i am a perverted idiot..
I decided to contact her again recently because of my anxiety, and because of the fact that we used to have a great friendship before distance severed the bond..

My final mistake that i regret is when i was 16
On a class trip we were staying at a hotel, my friend and i sharing a room.. We had this common friend (a girl) who were a.. what do you call it... free spirited person (??) she had no problem undressing in front of us, and my friend and i had obviously no problem with it.. this one morning while i was still in bed she came in to use our shower, but before doing that she joined me under the blankets for a min or so before getting in the shower. Later as she was getting dressed my friend slapped her butt, and i decided to do the same thinking that she probably wouldn't mind given the events earlier that morning.
I realise now that of course it ain't okay... i was never given permission to touch her but i did so anyway.. i never heard her talk about the incident, but it doesn't make me feel any less guilty and horrible.

All of these mistakes combined, which occupy my mind a lot these days, makes me feel EXTREMELY horrible, and i wake up sad everyday because i think myself as a sex criminal because of the things i did.

I think you were thoughtless and immature and now you are not. Certainly it is highly unlikely that prosecutors would move forward with any of these cases if reported. Regret is understandable, but I really think your focus should be on harm and restitution. If you need to apologise to any of these people do so and ask what you can do, if anything, to make amends. But these weren't monstrous behaviours and I think it is extreme to consider yourself a sex criminal due to them. What you did was wrong, but more towards the harassment end of the abuse spectrum and it sounds like you have felt guilty long enough.