I can’t figure out how to please myself

I’m 15 years old and I have tried everything. I have tried vibrating things and rubbing my clit but nothing works. But the weird thing is I can make myself orgasm by watching porn ect and squeezing my legs together when they are crossed. This is literally the only way that I can please myself. Anyone have any advice? Everything else doesn’t do anything not even rubbing. Just squeezing my legs.