Just play.

And to expand on that, I tried a couple software demos (i assume you mean software that teaches you how to play, right?) but I didn't like that. I like the more direct approach of jamming to mp3s/finding chord tabs to my favorite songs on e-chords.com/composing my own songs. I also just sit around and randomly play something when I'm not busy. Inspiration is a big part of that and I usually find it on Youtube (watch people who are really good) and by going to concerts. I get a lot of inspiration from anyone who performs on stage.

But the biggest obstacle is learning how to learn. And learning it well.
Good luck.