Is it possible to make up for lost time with girls and if not how can I move on?

I'm 23 and didn't get a gf or lose my virginity till 22. I find myself wanting to have sex with every beautiful girl I see. In particular I get really frustrated when I see gorgeous schoolgirls walking around (I'm talking around age 16, not really young. I'm not a paedo. And 16 is the age of consent where I live). It especially gets to me that I never got laid as a teenager or had a girlfriend during that time. I feel like if I could just have loads of sex with girls now, or get a really hot young girlfriend now, it could make up for the past and I might be able to move on. But I doubt these goals are realistic. Also, from what I understand, I'm now at the age where guys should be looking for more serious relationships with women that aren't based on appearance. I wish looks didn't matter to me so much but I can't help that they do. Has my time for frivolous relationships and lots of sex and making out with different girls now passed? If so how can I get over my lost youth and have the mindset of a 23-yr-old instead of a teenager and stop feeling all this regret and frustration?