As a self-learning piano beginner, I make tons of colored markings in the score of a new piece. First I must highlight all the notes that are included in the key signature so as not to forget they should be played with accidentals (since they don't have # or b directly next to them). Also, e.g. for Mozart's K545, 2nd movement, I need to mark to distinguish the variations of alberti basses, because the difference (or the lack thereof) from one to the next is hard to discern visually. Also I need to highlight when the lower staff changes from bass to treble or vice versa (sometimes I missed the change and played it wrong). I doubt anyone has scores with so many colored markings! (it's like using a diligent hand to help a lazy mind)
Is this common or not? Do others have the same issues as I do? How to keep remembering the accidentals that are only universally included in the key signature? What about the subtle alberti bass change? etc.
What do you do to deal with such issues? Thanks in advance.