woah, me too! stopped during college and I decided to take guitar serious this time and get some lessons which i started in July. it's been a huge improvement and super fun.

check out Plini and Intervals, some of my favorites in the same vein as Satriani.

also, I've found guitar pro to really be worth it. Sheet Happens publishes official tabs, and all their PDF tab books come with guitar pro files as well and theyre pretty good quality. Sheet Happens has a permanent guitar pro discount code too.