Im Confused Help !

So this will probably be long so please bear with me. Actually, I think I'm living behind a mask and I no longer recognize myself. I mean ever since I can remember Ive always acted towards people the way I know that will please them. Its been so long that I think Im forgetting what I really am. Some of my friends even describe me as someone like this and that but I dont remember being what they describe me as. Its like they are talking about a whole different person. I know I should stop putting a mask and just be myself but at this point I kinda dont know who is "myself". That its actually taking a toll on my mental health .