Note letters are useful for talking about music, but for playing, thinking about note names slows you down. When you are learning to play your instrument, when you see a note, think about fingering, not the name of the note. When you see the next note move a step up, think about your fingering stepping up, not the name of the note.

If this seems a little confusing to you, again, just be patient. The more you play on your instrument, the clearer it will all become.