Welcome aeyoo! Before you decide on a style, I'd try hitting up the bike shops and trying out roadies, cross bikes, track bikes, mtbs and hybrid/cruisers to see which style you like. Hybrids/cruisers usually are heavy and don't do anything well (not fast, not good on mtb trails, more upright position for comfort, but not good in a headwind, etc.) I ride a cyclocross frame fixed wheel w/ 28's for comfort and it's a good mix of speed, comfort and durability.