My two cents.....
Having done my share of the first, through HS and College. Then after college having this attitude/past cause nothing but problems with girlfriends. Which sucked, but I learned I lot about myself and relationships. Then I met my wife, who I love and adore, and couldn't think of a better way to spend the rest of my life.
What did I learn? Experience life and what it has to offer, but be respectful,
and then find someone to share your life with. Everything you do, when done for or with someone else, will be so much more meaningful and worthwhile.