The majority of our self sabotage is unconscious because we're not aware of what our true thoughts, desires, and needs are.
If you're actually conscious that you're doing one thing, but hoping for a different outcome, then I would say you don't need to take failure as a "sign" that something's not right for you.
Make your own fate!
“I'm glad mushrooms are against the law, because I took them one time, and you know what happened to me? I laid in a field of green grass for four hours going, "My God! I love everything." Yeah, now if that isn't a hazard to our country..."
― Bill Hicks
"Sometimes eating the wrong food with the right attitude is a better choice than eating the right food with the wrong attitude... That’s how powerful the mind and the heart can be in the healing process."
- Chris Kresser