Yes, I could have been more proactive. I made a lot of sacrifices in terms of not working out, overwork, stress,
etc., in the quest to get this startup going.
Maybe you can find some casual running groups in and around North Carolina? I attend one and we run every Wednesday and Saturday. Even though I'm 20 years younger than the average runner some of the guys (who were on track to be the position you find yourself in now) have really turned their life around with respect to looking after themselves. I would encourage anyone of any age or fitness to do the same. Having people around you who can encourage you makes it so much harder to give up.
Also, 2 hours a week is nothing in the grand scheme of things. If you have to commute, try commuting by bicycle or if you go by train, get off at an earlier station. I'm not sure what your commute is like in the USA (I suspect most people drive to work), but a lot of people in Europe get trains and buses - which does make that latter idea a bit easier.
Regular exercise makes such a huge difference in ability to handle stressful situations as well as dealing with long term stress. It also improves cognitive function measurably.
I don't know what else you have going on in your life, but you are sacrificing the wrong thing. Forty-five minutes a day is nothing for the benefits you get.