I disagree that "trying" is a form of failure talk. Actually, I always tell people to embrace the idea, "If a thing is worth doing, it is worth doing badly" (G.K. Chesterton). Going into something with an undue sense perfection is a sure-fire recipe for failure. It puts pressure on us to succeed. Which causes a host of other problems.

Many times, success comes in doses and different forms. So, we have to be gracious enough with ourselves to fail if needed, maybe many times. Doesn't mean we're a failure, it may mean we need to do something differently. But all we can do is "try." Since no one knows the future we can't presume we'll be greatly successful @ all things. I agree that we should speak positively to ourselves, but for me "trying" is a form of experimentation. If I know someone that wants to overcome their problems, but are afraid to take the first step, I might tell them to suspend judgment on results and just "try" and see what happens.