I think the best solution is to get a new guitar and amp (Or a new amp at the least.) Software like that is never going to come close to what a real guitar sounds like, so you're best off just skipping the middle man and getting a nice amp
Speaking of recording set ups, I've been getting a lot into music production recently. I've already released my first album, and I've started work on a second one. Here's a song I'm working on that's (Kind of) K-ON! inspired -
https://soundcloud.com/bsmoked/song-1-30-3-13 (Thae guitar is my Fender Mustang and Blackstar HT-5RH mic'd up with a Samson Q7)