It's not that hard as you think it is. I'm 23, had been using concealers from 18 years old till a month ago that I switched to wearing hair. I was pretty scared at first too but I said what do I have to lose? If anything goes wrong you just short buzz your hair and wear a hat for couple of weeks. Really happy that I did the switch, I should of done it earlier and not be depressed everyday about how thin my hair is..
There is nothing wrong with wearing hair, you don't like something about it and you fix it that's all.
Like I said i'm 23 and live a really social life, many friends + long relationship girlfriend + family. Only two people know I did something to my hair and that's because I told them no one else has no clue whatsoever.
Maybe you can send some pics, blocking your face, so we can gve you tips and guide you to the right density etc..
Anyway don't overthink it at the end of the day it's just real hair tied to lace - simple as that.