Fallen off the wagon big time

Well, first thing is to go to the doc and get some basic labs done. Especially things like vit D, which can easily cause depression, tiredness and fatigue and just not feeling like doing anything or having any interest in anything. It would be sad to think a simple vitamin is holding you back. Also, if not something like that, perhaps a simple anti-depressant and/or counseling to see why you feel so "blah" about life - if you "lose interest" in stuff and feel like everything is just too much trouble, something is wrong that just "I need to get motivated" is likely not going to fix. If your life is not going the way you want, YOU are the only person who is going to do anything about it. Waiting for anyone or anything else to come along and "fix" the things you dont like is an exercise in futility and self-pity.... YOUR life is YOURS. Dont waste it! Change it!