Excuses are the fuel for self-sabotaging behavior. I used to tell myself I would work out at least 3 times a week because I wanted to get fit/healthier and because I liked how I felt afterward. Occasionally I would work out (which was every few weeks), but I somehow always found a reason not to stay consistent:
"I'm too tired."
"It's too late."
"Definitely too early."
"It's too hard."
I always had an excuse which pretty much aided my self-sabotage. It wasn't until I consciously decided to get out of my own way that I was able to become successful with working out multiple times a week.