Hello folks, in the recent years I've ended up with very little time to dedicate to the guitar, maybe 30-60 minutes a day, if I try hard, and I realized that I need to be very conscientious about how I use that time. I've always liked learning covers of songs by my favorite bands, however I later realized that what I really wanted to do was to be able to comfortably improvise anything I want while playing with other people. I am a lot more fulfilled by that creative process than by virtually anything else I've done on the guitar. I also feel that knowing improvisation well will one day get me a lot closer to being able to write interesting music. It's been years since I seriously dedicated myself to the instrument, since I had an instructor and a solid regimen. I'd like to know if there's a method, a course, a book or an approach out there that can help me slowly but steadily build my improvisational / music theory skills to the point where I am comfortable jamming with other people in a lot of different styles. It has to be really incremental, where I get a super-firm grasp of basic concepts and then build on top of those. Ideally it'd also be something I can handle on my own without needing an instructor. There's a lot of material out there on the web, I'm sure I can find something about just about anything. My improvisational models would be bands like Liquid Tension Experiment (Petrucci <3), Bozzio Levin Stevens, Guthrie Govan, Paul Metheny and so on. I don't really care about shredding and being ultra fast, I know it's a lot of work that's more on the mechanical side of things, and in the past I've often burned out by focusing too much on speed and missing out the fun of jamming. I'm happy with postponing speed for as long as necessary in favor of tasteful phrasing, and learning what to play and when to play it. Any recommendations? I'm really hoping there's a way for me to make this happen. I've really missed the guitar for a long time and it's a relationship I'm hoping to be able to rekindle once again. Thanks!