Ok but there’s a variety of forms of rejection. I had painful rejection experiences when I was young, some were kids being shitty (not ok), some were kids just not getting along with me (sucks but fine), and some were shit like romantic (necessary for personal development of all parties and as a happily married adult I’m grateful, no matter how embarrassed I was at 16). Part of me gaining confidence was me learning to be someone people liked (alongside my peers getting old enough to find me funny). And I’ve seen people who have confidence and no likability, they range from annoying to in need of severe professional help