In the beginning I would practice for hours on end, and sometimes when time permits I've been known to still do so, however I'm a visual artist as well and that's my day job, so if I go too overboard my hands end up hurting and has some affects at work. So depending on my schedule I try to do no more then two hours a day and try to get theory in there too, to give my hands a rest. I do this everyday, some days it's just two hours of working on a song im trying to learn. However Rome wasn't built in a day and good stretching and warm ups are key. A typical session starts with finger stretching and then warm ups which includes spider fingers and scales, a lesson from here (in the blues course now) try my best to master the lesson if it's rusty I mark it as a favourite so I can go back to practice that, then on to theory. Right now circle of fifths and trying to memorize relative minors. Then finally and most importantly to me is I practice a song that I want to learn and have fun. I always try to end on a high note as positive reinforcement doesn't only work for Pavlov's dog. Like I said it's a marathon not a race, I have realistic goals which in the end, is having the courage to stand up with a band and play. As well as recording songs for my family, corny I know, but having a song gifted to you, to me at least, would be the ultimate gift. I wish my wife would have chosen to learn with me, might not take as much flack buying new gear lol.