Slacking Off..

So the past few weeks I've been slacking off. I haven't made it to the gym to start working off the tire around my waist. I haven't made much more progress on my simulation for my thesis. I've basically done nothing but go to work and come home and sit on my @$$. I need something to light a fire in me so I can get back into the grind of things. I need to start eating right and working out. I need to start setting aside daily time for the thesis. I basically just need to do better than what I'm doing now. I don't know what it is, but this has to stop.