hair products for no friz and more moisture

When my hair is shorter, it is pretty straight. When longer, in the front it gets curly first, than even longer, some in the back, even longer, some along the edges, but for the most part, along the sides and near upper back it stays pretty straight. My hair, when longer, doesn't really curl too much, kinda more wavy/curly.But here's my problem. My hair is REALLY DRY and REALLY FRIZZY and is KINDA FINE. It has no life really, and when I have it kinda long, it doesn't look too natural, but more clumped together and frizzy, with each strand going in different directions. I can stick my hand through it and it will stay up.So, what products can I use to get rid of FRIZ, get rid of DRYNESS, and control any curls/waves and also make my hair more normal and have life? With normal hair, it is the kind that has a lot of strands follow the same path and form larger clumps, but is still nice. Mine, each strand goes its own way and wavy way in some places.Any help will be great. I don't mind the curls/waves too much, but the friz and having each strand being different from the others (does this strand thing make any sense?) is what gets me.Please help. It is EXTREMELY APPRECIATED!