Well it sounds you like have a several problems. I am currently in college and trust me it is basically high school on roids. So you are definitely going to need to figure this out before you get there.
Your first problem is that you said you have been reading about attraction and dating. You also mentioned "pick up and manipulation" etc. The problem with these is that they don't address the actual person doing the pick ups. They work great on paper and in books but they fail to take into account that women and real life are always going to go off script. The only place in my opinion that these things work is through digital interaction. This is the only place you control the flow of conversation and how you are perceived by others.
Ironically high school is the one of the hardest times in anyone's life to pick up women. They are at a period in their life where are they are constantly worried about what their peers think of them. You trying any of these pickups in a public setting around other people(male or female) is going to fail spectacularly.
Now do not worry I am getting to the positive parts of this lol . Congratulations dude! We are "millennials" . Which means I am sure that you and everyone of those girls has a cell phone or some way to communicate that is not face to face. This is where you are going to thrive. They are now alone, with no one to judge what they do or say. This is where you use the stuff you have read about. I am not sure what you have been reading but the problem with a lot information out there is that it is written by people are not part of our generation. They don't understand how "millennials" think. Sorry to keep using that word but dude we operate so much different than any other generation when it comes to relationships. So I believe I am allowed to plug websites and what not as long as they aren't selling stuff. This guy I have been following has a newish blog where he writes about dating advice etc. He also reviews a couple products that he found helpful for people in our generation. Dude this texting book that he recommends(thats right an entire book on texting.) changed how i interact with people. He recs some other stuff but you don't really need that unless you are hopeless. It sounds like you are not you just need a way to use the info you have learned. So I would check him out and check out the texting book. It really helped me apply what I read in a way that fits people our age. You can also get other books but this is just from my experience. That dudes website, if you are interested, is "modernmack.com".
Hope everything works out for you man. Hit me back in a PM or response if you need help with anything.