I am 20yo male, never had GF(except for love from childhood) and I would say poor social skills. Ive spent most of my time surfing web and playing games. Now i Just smoke weed and surf web mostly.

Well, I did recently read models by Mark Manson and Ive decided to hit the gym and invest in myself instead of focusing on girls because I would be needy and I am pretty insecure due to my failures throughout my life.

But the thing is....As days are passing by, I am more and more anxious because of lack of sex and intimacy in my life and I am worried that before I get my shit together, I will be past my prime time and I will never (or for short amount of time) experience what is it like to have multiple sex sessions (thanks to short refractory period on young males) with beautiful girls or just generally enjoying girls while i am still pretty young.

Does anybody feel the same? Could someone give me some advice on this?