Hello Fiminean: I see this is your first post here on PC. So... welcome to PsychCentral… from the Skeezyks!

I hope you find the time you spend here to be of benefit.
With regard to your post, I would just say that the type of thing you are doing is mildly self-abusive. So far what you're doing isn't dangerous. So it may or may not be of any great concern. Self-abuse, however, can be addictive & can lead to more-&-more extreme behaviors.

So, from my perspective, while I wouldn't become too overly concerned about this at the present time, if you find that you continue to do it, & can't stop, & especially if it begins to get more intensive, then please reach out for help in real life. See a counselor or therapist. Do whatever you need to do in order to resolve what it is that is driving you to do harm to yourself.
PsychCentral is a great place to get information as well as support for mental health issues. There are many knowledgeable & caring members here. The more you post, & reply to other members’ posts, the more a part of the community you will become. Plus there are social groups you can join & chat rooms where you’ll be able to connect with other PC members in real time (once your first 5 posts have been reviewed & approved.) Lots of great stuff! So please keep posting!