I'd recommend NEVER cheating a checkmark as the day you see you're on a 30 day streak will be ruined by the fact you know one or more of those days were lies to temporarily feel better about yourself.
So now I don't do so. I do what I have to do. It's for my own betterment. Skipping and cheating is easy, courage is in facing, in acceptance.
And being capable to face your own faults makes you smarter and peaceful