Am I becoming a NEET?

Hi! I, 20m, am starting to wonder if I'm slowly becoming a neet. I'd like honest opinions if possible. I've noticed more and more that I don't want to DO anything outside. I go to school & work, yes, but I don't care to talk to anyone. When I'm not doing those things I play on my computer. But I noticed that I think I actually hate most people. This isn't something I used to think, I used to be very positive and think there was good inherent to all. Nowadays I think we are selfish creatures by default and if we aren't taught to be good we probably won't be. I know this is a bad way to think about people but I just genuinely don't like people. I don't want to talk to anyone, when people talk to me I feel annoyed. I try to be sociable and smile and laugh but I just feel this feeling of wanting to be alone. Idk, am I just being antisocial? Depressed? Or am I falling down the neet hole lol.