Which logical fallacy is it?

"The weather has been nice lately, so I think I’ll pass my exams."

"I took this medicine and my cold got better, so the medicine must have cured me."

"I’m always right because I say so."

"Everyone is buying this phone, so it must be the best."

"My favorite singer says this vitamin is the best, so it must be true."

"Why should I listen to your opinion? You've never even been abroad"

"No one has proven unicorns don’t exist, so they must exist."

"He’s wrong because he dresses badly."

"If we let students redo assignments, soon they’ll want to retake courses, and eventually, they won’t learn anything."

"I met two bad drivers from New York, so all New Yorkers must be bad drivers."

"The CEO is always right because he’s the boss."

"I wore my red socks and my team won the game, so wearing them again will help them win."

"I met two people from a particular town who were rude, so everyone from that town must be rude."

"My friends from Japan all like sushi so I guess everyone in Japan likes raw fish"

"If you fail this test, you’ll drop out of school and never get a job."

"We lost money at the casino for a long time, so we must be about to win big."