Okay, first off, everyone here has given some good advice. Learn the rhythm!! Like someone said, there's Yngwie wanna be's who can shred and shred, but ask them to grab and acoustic and strum something easy, and they're lost. I would recommend also, change your keys alot. Don't learn everything in A...cuz guess what? You'll be doing everything in A and if you ever have to change keys, even though its the same patterns, just two steps up or two steps down, they seem foreign to you. I don't know all their songs, but I'm willing to bet that Keith Richards plays everything in Gmaj. The few songs I have played of the Stones, they were in that key and he always sounds the same. Don't get me wrong, the dude's been making a living of this since before I was a gleam in my dad's eye...but I don't think Keith is an exciting player.
Okay, I'll stop that one before another debate erupts. Learn your jazz chords too. There are alot of songs who use them and you probably don't know it. Learn the fretboard (I'll admit, I slacked at this one too). Be able to pick a fret on a string and know instantly what that note is. In addition to that, when you're learning your scales, learn what notes make up a scale so as to tie in your fretboard knowledge. This way, no matter what key you're in and no matter if you're shaky on the patterns...you'll know what notes comprise that scale while you're improvising.
Lastly, as far as developing your style..well that comes in time. I'll try to explain it, but it's really something that just "happens". We're all influenced by different people. I'm a bit more old school, so mine are Clapton, Rhoads, Page, Sambora and Brian Setzer, to just name a few. I don't sound like Randy Rhoads, I don't sound like Jimmy Page and I sure as hell don't sound like Eric Clapton....but you can hear them all in the way I play. Those people influence you because they connect to you in some way. Whether they're melodic, fast, bluesy or whatever. They've got a sound you like. As you play, and more so as you improvise, you'll find yourself instinctively playing things that kindof mimic your influences. Meaning (and I hope I'm not losing you, because I'm starting to lose myself): You're playing on the fly, literally, so to keep your focus and keep it sounding good, you might throw in a Page lick here, a Satch lick there, a typical Rhoads rhythm..etc.. See where I'm going? Individually they're each their own...combined they're YOU and your style.
Music washes away from the soul the dust of everyday life.