To all teenagers out there......?

Is love at first sight a myth? Cuz im 17 nd i go to high school nd i been "in love" many times but nothing evr worked out. Im startin to question the term "love" also. Im tall, built and handsome nd i can get a girl but nothing evr lasts. Its cuz im high maintence nd no girls can take care of me hahaha jk. but ne ways wat r ur ppls opinions about love?