Decisions

So I recently I had head and anal for the first time. Those were the only things relating to sex I ever had. Head didn’t last long, and when he started fingering me I bled .. I am not going to lie I regret my decision because now I look at it and I feel like I wasn’t enjoying it as much as I could and I feel like I wasn’t mentally ready for that although while it was going on and before I thought I would be okay. I don’t know what to do now. My body feels weird. Can anyone relate? I really need advice on how I still maintain my confidence and dignity because right now I feel so insecure and my mind is just in a dark place right now