If you keep it in a case or something, don't. The main reason I play my bass more than ride my bike is because my bass is hanging on the wall next to my desk, my bike is in a shed. Which is going to be easier? Guitar Pro 5 is brilliant, love it, get a copy if you can. Learn to play all of a song, no point in just playing the intro, or just the verse, if you can play 1 entire song well, your better than someone who can play 3 riffs well. I used to learn riffs, but then I realised, theres no point. Don't spend hours on theory. It's dull, it truely is. Look at scales, play the scale in different positions on the neck and find out where the notes on the neck are. Look at song tabs and see if you can work out which scale it's based upon. Then go and make some fun noise. Have fun, don't just play because you feel you have too. Always use a metronome. Bad timing sucks, anyone will tell you, practise now and avoid bad habits.