Better with age...?

Im at the age where I find myself thinking about the future and hoping that my actions now are for the better. I am 20 years old and I continue to think about my future and I seem to be worried more about i now than I was 2 or 3 years ago. I still believe in my golas, but I worry about the future. Example, I was talking to my brother about sex and funny past experience and future things to check off the list, that's when it hit me. Sex aint what it used to be, as far as it being sacred. Everyone's doing it as much and as often as possible...not that im complaining (sex feels great lol), but what about when I get older? When I finally settle down and get married, I dont want to marry a hoe. What if she has home made movies? What if she's featured in a cum-shot? I laughed at the scenario with my brother, but damn that! I started thinking about the question seriously. Either I'm getting smarter or I'm just worrying about the future like most poeple.