You're on the right track fn, now you just have to step up and implement the plan. You'll make a few mistakes, that's ok. Most of my color advice is pretty safe, at least one layer will be neutral, no graphics to worry about, nothing flashy. It's easy to add flashy pieces to a base wardrobe, it's much harder to work with a wardrobe that is all flashy pieces. As ken said above, it's college, if you clothes are clean and fit you then you're 2 steps ahead of most everybody else. Certainly ahead of where I was. We're about the same size, I'm 5-11ish and 160 lbs, a pretty average body size. Really well fitting button downs are hard, check the thread above about untucked shirts. For most people it's hard to get where they want to be without going with someone like Jantzen or having some alterations done to an off the rack shirt. Your stuff won't be perfect but neither will anyone else's so it all balances out. Get some stuff. Take some pictures. Post them. Use the criticism constructively.