Re: What can I improve upon the most
As I said before! You need to concentrate one style. Knowing your styles is important because each style has its own attributes that you need to become familiar with. For instance if I listen to a Count Basie Big Band recording, then what is the guitar player doing? I'll bet that he'll be comping chords quietly in the background using a 1,2,3,4 rhythm ala Freddie Green. Once you hear it you should make a record of that in your mental database as, "Ok this is what I should be doing in a traditional big band setting"!
Likewise, if you hear a death metal you should note the rhythms and feels just like we did in the Basie example above and record that into your mental database as "Ok this is what I can do on a death metal jam!".
As you can see the focus is on playing a support role rather than lead. I think by learning to support via rhythm playing allows you the ability to learn many styles a lot quicker. The main thing is to learn all of the different groves that these styles posses and be able to "IDENTIFY" a given style and fit in with other players.
The most important thing is to play! If you don't have fellow musicians that you can practice with then play along with records and try to imitate the player as closely as you can. This will teach you which tone settings work best with different styles. Now you know how each style is supposed to "feel" as well as which tone setting work best for a given style.
The next level is to study the different aspects of lead guitar in each of the styles that you have learned to play. You can use the same approach of "LISTENING" and "ANALYSING" that you did for your rhythm playing, but you should expect that learning to play lead in each of the different styles that you have learned will take a considerable amount of time.
This is were complicated aspects of playing come together. It's like multitasking. To play lead for many different stlyes of music you have to be able to scientifically study harmonic structures in order to develop improvised melodies over them. As you can imagine harmonic structures and rhythmic structures will vary from one style to the next. Therefore, certain melodic and rhythmic ideas may work for one style but not the other. It takes more time and experience to sort these sorts of things out.
This is why I suggest focusing on learning to play rhythm first. Because if you try to play lead and everything else then it may take years to become fully proficient in a single style. Limiting you role at first allows you to gain more experience sooner.
Once you have built your stylistic vocabulary (both rhythm and lead playing) then it's time to try creating stuff on your own like original compositions or even the creation of a so-called "new" style of your own. Importantly, I think you'll find the "new" styles, if they are successful are often derived from being able to fuse old style together or at least draw creative ideas from old styles into new styles. Either way having a vocabulary of styles to draw from is a major advantage to an adventurous composer.
Usually, we like to say that a person that has done this type of homework has deeper pockets! This means he has more experience from which he can draw ideas from than the average player that just researches superficially or simply tries to play what they "feel". This is evident in the finished results of whatever the player is participating in either performance or musical composition. The person who has cheated on his homework maybe successful at the onset, but will soon run out of ideas and frequently suffer from creative blocks!