Is there someone at home that can help you with training? Going to school and working fulltime can be a challenge itself. I did the same thing. I basically put myself through college without any student loans and you're gonna really have to budget your time especially when multiple assignments are due or finals week. A typical night would be staying up till 3am or so then waking up for work.

Expect to spend a minimum 2 hours a day walking/running, playing, training your dog.

It will be real tight. To suceed in a typical college course, you need to spend 3 hours studying for every class hour each week. For fulltime status in a quarter system, 15 credit hours comes to 45 study hours or 8.5 hours a day.

You are looking at 18 hours a day. Ofcourse, noone really puts in 3 hours per 1 class hour but there will be times when this is going to be a reality.