How about I troll on social media just to have some human interaction?
Are you joking? How does trolling make you happy?
Having enemies makes me feel like I am actually popular.
It's not ok to troll people online. It hurts people. It's wrong for you to gain pleasure from trolling.
Why? If I don't troll, people will hate me and think I am useless.
People will hate you and find you useless FOR trolling, and not the other way around. You're never going to make any friends by putting others down and causing arguments.