Sometimes the best thing you can do is not think, not wonder, not imagine, not obsess. Just breathe, and have faith that everything will work out for the best.
Perfection does not come from belief or faith. Talk does not count for anything. Parrots can do that. Perfection comes through selfless work.
If you do not believe you can do it then you have no chance at all
Faith Is Not The Belief That God Will Do What You Want
It is not only what we do, but also what we do not do, for which we are accountable-Moliere
Do Not Dwell In The Past,Do Not Dream Of The Future,Concentrate The Mind On The Present Moment.-Buddha
Do not let what you cannot do interfere with what you can do – John Wooden