Your opponent blundered mate in 1 and you had under 70% accuracy. You're safe.
I’m scared I will be banned from Chess.com
I don't think the cheating detection system is based on winning streaks, if you have a consistenly high accuracy (something above 96%) and zero mistakes or blunders for dozens of consecutivve games, then yeah you may join the blacklist.

So basically, I have a big winning streak. I’m 442 elo, and I beat a person with 747 elo. Please can someone check out my games and see if chess.com will have a reason to ban me?
If you're playing fairly you have nothing to worry about.
https://support.chess.com/en/articles/8568369-what-do-i-need-to-know-about-fair-play-on-chess-com
So basically, I have a big winning streak. I’m 442 elo, and I beat a person with 747 elo. Please can someone check out my games and see if chess.com will have a reason to ban me?