Don't think about yesterday it's done. For what is today, is only for today. And don't think about tomorrow for it will think itself.
Remember we cannot back to yesterday, we cannot force ourself to face tomorrow.
The Only Easy Day was Yesterday.
One Day We Had Today.
Tomorrow Is Another Day.
Don't be afraid of what might happen. As long as you do great the outcome will be great. As long as you move without bothering other you don't need to be afraid. Just step forward, step forward, step forward. And if you feel low keep pushing forward to feel high, if you're not confident enough just close your eyes, take a deep breath in, and tell yourself "everything would be fine", and if you feel tired just keep on making things happen and you'll get to it. In hiking there's no Minor Climb you need to give your full strength, your full energy to reach the top. The greatest achievement is not a paper, not even medal but experience and a moment of happiness if you reach top. Paper? Ribbon? Medal? It may all vanish but memories will stay and will never be forgotten.
Just step and step and step, you may rest but you have to rise again and reach the top.