Kudos to you! Are you aware of any other masters which isn't as brutal as OMSCS, honestly I am thinking from my capacity and capability.
Also, I would say - if you don't hurry through the program and take 1 course at a time, it's worth giving it a shot. You must start slow, gradually you would have an intuition of how to pace your life along with the studies.
Hope this helps & all the best.