So, you have three girls. You already have a poor attitude, saying how you'll let them crash and burn or fade off due to your own lack of understanding or inexperience. How the hell do you expect to get anywhere. Before I say more about that, you asked about me.
Well, I'm certainly not as old as you are, but I used to be socially incapable, and by that, I had no skill with conversation, or girls, or even being included in a group of people, I used to slide out, avoid if you will.
I didn't buy a single piece of material from any of the marketing crap advertised. I was actually shown this site by a close work friend, and I read information, and kept it in the back of my head. Little things, such as learning how to not act like the nice guy, teasing/flirting, touch (the proper use thereof), how to kiss, how to escalate, how to take control of the conversation, finding confidence within, displaying higher value, learning when to put your foot down, and more. EVERY single one of those topics can be found on this site for free. Not one penny of cost to you, yields the same exact crap DA or anyone else will tell you for $39.99 + S&H.
What I'm trying to tell you, is that you need to research the basics, work on the basics, discover how to approach, how to do it right, practice it, and repeat. Learn how to use your energy state in interaction to control the mood, the topic, her reaction. Learn when how and where to apply touch. Learn that she is too, a sexual creature and such like yourself, desires sexual attention (ie: FLIRTING). Learn to crack a joke, take a joke, and roll with a joke. Understand that there are no rules defining how to date a woman. That there is no 100% way to be perfect at attraction. That logic does not apply to a woman if the reasons to do the illogical are strong enough (attraction). Develop confidence, though inspirational threads and experiences of others, and though your own successes and failures. That outside apperance applies only to the shallow.
And I gotta go, I'll finish this up later