Zuki,

Here is a simple exercise to help you with your sight reading; You need to learn the staff ledger lines, notes, and chords intuitively. The best way to do this is through repetition. I learned how to do this with Index Cards. I made up cards with chords, notes, ledger lines, keys, etc. and drilled myself each day on the train ride to work until I could read and name the notes on the card immediately. It was frustrating at first, but after a week or two, I was humming along.

Eventually I increased the complexity of the cards with complex chords and voicings.

Give it a try, it's cheap and it's fun!!!

Al G