Confidence comes from your actions
If you think watching reels and getting a dopamine boost will magically give you confidence, then no, bro. You actually have to take action,actions that prove to your brain that you're capable and worthy. That's where real confidence comes from.
I did something just yesterday that most people wouldn't even think of doing, and it boosted my confidence a lot. So, do uncomfortable things no matter what. That's how you grow.