First I want to say Hi, and welcome to
TH 
Even though the severity of your self-harm has decreased you are still self-harming. And you are right, it could and probably will get more severe down the road. The euphoria with the sight of blood is common in self-harmers, I frequently get the same feeling. I also get the after effect of feeling even worse than before I SHed because I just injured myself. I'm glad that you are reaching out for help. If you ever need anything feel free to
PM me, even if you just want to talk.