I’m the type of guy who is always been scared to tomorrow when there’s an upcoming event, I always keep thinking about what happens next? It’s just like a conflict that keeps me to think of the worst case even though I’m trying to gain some sort of positivity, at the end I’m having an hard time doing the normal routine and several times doesn’t sleep. And when I’m dealing with people, I’m always thinking their reactions/thoughts regarding with my reply and if I did the correct response. I’ve lost my mom when I was 12 years old and invested too much time to computer games, I’m just saying it so that if there will be connection about it. I’ve tried to go to a Psychiatrist when I was 16 years old, but he had just prescribed me anti-psychotic drugs without any further examinations or explanations about my case. When I’m about to explain myself to others, they typically see me that it’s just with my thoughts and I just do need to avoid thinking too much. By the way I’m 20 years old now, finished college, now under pre-employment therefore I’m thinking too much again not about the specific work but about like far future. I want to know if there is a diagnosis, preferably from Psychologists.
You won't really get a clear diagnosis from people on this site, but I hope a professional stumbles upon your question
It sounds to me like you have anxiety from personal experience. You also might be over stimulated, if you spend a lot of time lost in video games or social media. It might help you to dedicate an hour or two before bed to separating yourself from technology. Take a bath, read a book, do a puzzle. While technology is a convenient stimulant, you're not getting any mental exercise which leaves you feeling restless and can give mild anxiety. As far as the social anxiety, know that a lot of it is all in your head. We take our own negative, judgmental feelings toward ourselves and internalize it. It's pretty hard to outwardly talk to someone about the flaws you find in yourself, so it's easy to self project your own negative feelings into someone's tone. When you have feelings of anxiety, find something you can touch, taste, smell, hear, and see and it should bring your level of anxiety down.
Like I said, I'm not a professional but these are things I have experience with in my daily life. I hope some of this information helps you <3