Rest day

So the only nights I can get to the gym to weight lift are Tuesdays, Thursdays and Fridays. I know it's suggested that you have one rest day in between, so how bad of an idea would this be?

I'd try and go other days but I have a really hard time getting motivated to go to the gym if I don't just go right after work! (Mondays and Wednesdays I have a night class, so no working out those days...and Saturdays I volunteer at a vet clinic)

What about trying to go in the morning? I enjoy going in the morning because i get it out of the way. Sometimes is hard to get up, but once you get in routine it feels great. 

The only snag you might run into is on Thurs/Fri. However, it all depends on how you train. As long as you don't lift with the same muscle groups two days in a row or do HIIT two days in a row you should be fine. What I would recommend is making Tues/Fri your intense workout days lifting on a full body routine and doing HIIT afterward for your cardio. Then use Thurs as just a regular cardio day.

You also don't have to exercise at the gym. There are plenty of body-weight exercises you can do at home that will give you a killer workout. Aside from the standard push-ups, pull-ups, etc there is a fantastic full body conditioning exercise called a burpee. Google it "burpee exercise" and you will find plenty of sites with videos showing how to do it and articles on it. You can get a killer workout in less than 20 minutes doing them and your metabolism will be elevated for a long time after you finish.

The problem is I can't really get motivated to do it at home. If I'm at the gym I HAVE TO work out. Also, I really can't go in the morning...Mondays, Wednesdays and Fridays I have to be at work at 6:30, so there's NO WAY I'm going to the gym before work. In fact I don't even know if it'd be open early enough for me to do that :P

You can go to the gym 6 days a week if you want and take 1 day off. I would try to vary the exercises each day though. I currently exercise 6 days a week, sometimes twice a day. Some days are intense, others are not. Ping me if you want an example.

Best of luck to you. Keep pushing on!!!

On Thursday and Friday mix it up. On Thursday work your upper body and on Friday lower.