Congratulations.? You are now playing the guitar

Lesson 1 is your first step in music so make sure you learn it well.? Don't just be content to read through once only.? Maximum advantage will be gained by repetition.?
You need to play your first piece over and over again until you get the right feeling for it.? Practice here will help you learn other pieces more quickly later on.? Memorize the names of the 7 basic notes, the stave positions and on your fret board.

If you are doubtful about any point, come back to it later on.? You will be surprised at the difference a short rest can make.? A problem that seems insurmountable when you are tired can disappear when you are at ease.? It is often not the problem but your own state of mind which can cause you to be confused.