Is that you Big goal? Lol
Seriously though, at your age this is part of experimenting and can be a good fun memory. As for older women who go for younger guys (LTR), it's not normal and something is always seriously wrong with them, no exceptions. Women want a guy who's better than them, which usually means more experienced, richer, better career, more educated and so on which naturally makes them turn to older guys relative to them.
What they look for in a younger guy comes down to only 2 things - control and the feeling she still got it.
My 50+ cousin has been in a LTR with a 20 something dude for maybe 8 years now. Her daughter is like 4 years younger than him and my cousin is seriously fvcked in the head i tell you, a controlling nightmare who can't handle the fact that she's aging. I remember how she openly disrespected the father of her child towards the end and cheated on him with a relative of his. I remember him as a cool, really really good looking dude. She completely humiliated and destroyed him.