what should i do????

Consistant practice. 1/2 hour each day. EACH day. If you skip 3 days and practice for 2 hours on the fourth day your hurting your skill.

they said it already (scales/practice).

never underestimate the value of a few great sounding notes. Dexterity is very important, but also appreciate what someone like Jeff Beck or David Gilmour are able to achieve with the emphasis on phrasing and sonic impact. And don't be afraid to lift licks, it's a good way to learn and eventually develop your own style.

But what to practise then? I'd say go for some tabbed songs, and just learn to play the melodies. Best way is to start from slow songs, then go faster by time. A lead guitarist doesn't have to be fast, but clear and confident, so learn the scales through to make it sure you dont' play wrong notes, and consentrate on making the notes all sound as good. Try playing long notes after each other and make them sound just as good. Oh, and learn songs like "Folke's final decision" by Kaipa. It's great, and a good practise for playing vivid melodies.

For drum soloing at least, I agree with Flyingsod...its not just practice but steady practice. I always write out my weekly practice hours and stick to them even when I'm feelin lazy. Rudiments an technique building excercises are the way I go when I want to brush up on my soloing. I guess for guitar that would mean scales, etc...

Get a good effects board that has a headphone outlet.  That way you can play with a "loud" effect and not bother anyone else.  I also recommend that you work on your upper body strength.  You'll be amazed at how a little bit of muscle can improve your dexterity.  I'm not talking Mr. Atlas here, just a little will go a long way.