I failed my way to success.
When Thomas Edison succeeded on the 100th attempt to create the light bulb his attitude was "I have learned 99 ways not to make a light bulb".
I may not have this exactly right but the message is the same. Learn from mistakes; they are teachers. If we don't let our mistakes defeat us, we will eventually succeed. How many have given up when failing over and over again? Remember you don't drown by falling in the water; you drown by staying there.
A recommendation in one of my books was not to tell anyone what you are doing. Don't put that pressure on yourself. If you have told everyone about your efforts, they may even try to sabotage your efforts. If things don't work out you can almost hear them say that once again you weren't successful. The next time they might say, "yeah, right". If they don't know and you have a slip then you are the only one who has to deal with it and getting back at it will be easier because you won't be dealing with your embarrassment.
Think of the times you were involved in conversations about someone who has noticeably gained weight. We have done it ourselves and imagine others talking about us in the same way.
We failed many times while learning to play an instrument, ride a bicycle, tie our shoes, and many other things. We learned and were eventually successful.
We have to be serious about this because sometimes I think in the back of our minds we have this habit of failure and so we go ahead and sabotage ourselves and just get it over with. Let's be proactive and stop that.