I'm a shut-in. This is my story
I think you're wrong on one point: you constantly repeat how different and strange you are from everyone else. You're really not. As you mentioned at one point: you didn't want to go out and play, but the teacher forced you to do so. This is very common behavior, and teachers are forcing children every day to go out and play.Huge amount of people go through similar experiences to yours. Others start to lapse into an experience like yours and get scared - they go the other way and try to force social behavior on themselves, often becoming bullies or the kid you mentioned who hurt himself trying to show off to you.So my advice (since you're obviously not posting something publicly and expecting to get away without advice shoved at you) - stop worrying about 'normal'. Stop trying to fit in or not fit in. There are no points to be won by having social interactions. Social interactions are so you can learn, experience and enjoy. Approach them like this, and walk away when it's not working and try again. Everyone is doing the same thing, social interactions are breaking everywhere, you just don't see it so much from a distance because people cling to the precious few social interactions which have actually worked for them.Since you're trying to put things in terms of programming: if your program doesn't work/is slow because you're looping over the wrong thing, try again with a different loop, try a different data structure. You don't need to avoid 'if' loops in the future because they didn't work once. You don't need to keep trying to use an 'if' loop because its 'normal to use an if loop'. Excuse the terrible metaphor.