I have been having anxiety and stress trouble for a while now, and I decided to post it on this site, I’m a 16 year old male with a normal home situation, a healthy diet and (enough) exercise (I usually go to the nearby forest and do stuff there).
As I’ve said before I have anxiety and stress problems, I have been shy for my entire life, I barely talk to people because I’m scared to be ridiculed (I also blush, stutter, sweat, etc.) (Do know that I have translated/looked up the names of my fears), I’m very anxient and stressed when I’m in social situations or in class and I also panic when I’m asked a question or have to write on the board (etc.), I feel sad oftenly. I have Atychiphobia(self-diagnosed), suffer from a very low morale, I’m also easily demotivated, have a very low self esteem and don’t dare to look people in the eyes. I used to be bullied in school because I was “different” and “weird”. I have a low self esteem and I’m inept in social situations, I never have anything to say. I barely have any hobbies and only 1 friend that I first met when I was 8 years old, before that I had no friends whatsoever, I have attempted suicide twice (and I have failed in that), Now I see that it’s pointless to attempt that kind of things. I have trouble cooperating in groups (I usually sit quiet in a corner and do nothing until told to) The only person that knows of my troubles is my best and only friend, My parents do not know about this because they might judge me. I have also never consulter a psychologist because in that case I would most likely have to tell my parents first. I also feel uncomfortable while I’m around other people and tend to look behind me oftenly because someone might be behind me. I’m also scared of the dark because I always see/hear stuff when it’s dark. I love going outside where there is no one, then I can think clearly and be calm. I also use my imagination oftenly when I have to be in a social situation.
I would really appreciate some help/tips or someone that knows a bunch about disorders that can tell me what this is.

I excuse myself for any spelling mistakes or illogical sentences. I thank you for reading this and eventually answering. (In case you want to know, I have been hesitating to put this online)