I don’t know if what im feeling is right

I am a 17M right now I have never felt so lost, it’s been more than 6 months of me feeling lost and wondering what is the real point of life? For more than 2 years now I have had mass amount of anxiety (so big that I overthink messages I send on snap to one of my freinds) this anxiety stopped me playing football this year, as I dint want to get laughed at if I make a mistake or not get in. what also mixed with this is I have times of serious sadness and I can’t tell if it’s depression or not. today I found out that my freinds are getting invited to a party and that one of the hosts don’t want to invite me, this has happend in multiple occasions and every time I get serious fomo,anxiety and sadness. The one problem is I have been dealing with these for a while but for someone reason I always tell myself that you shouldn’t be like this cuz u haven’t gone through anything bad unlike other people. I never talked about this to anyone and this is the first time I have talked about it. (idk if this connects but I can never take a compliment and I always think bad about myself )