FA,
As someone who started at 5'11, 320lbs, with barely any muscle, i know the journey you are on. I dropped from 290 in January of 2004, to 200 in Oct of 2005.
It took dedication to working out (i took up mixed martial arts, its the best workout ever IMO) and eating right.
The downside is, i have low test and high estrogen, and never got tested. So after dropping over 100lbs, i put 80 back on after getting married. I stopped working out, got depressed, and started eating poorly again.
I am now back on my way down, with a doctor monitoring my hormone levels. Just wanted to let you know that you can do it!! I did, and lots of other people here have. Just dont give up.
One thing you could consider (and i know you have a long commute) is getting up 10-15 minutes early and getting in some HIIT plyometrics in your living room or basement.
Just alternating between a set amount (like 5 each) of squats, pushups, mountain climbers (look it up), and maybe burpees, followed by a 30 second rest for 5 - 10 minutes will get your metabolism revved up for the rest of the day, build strength and help build consistency in your fitness plan.
Also i remember reading that you dont eat breakfast until you get to work after a 90 minute drive. Eating first thing in the morning starts the bodies furnace, and is imperative to helping control cravings later on in the day IMO.
Good work, keep it up!