You have made some mistakes and you may not be where you want to be, but that has nothing to do with your future.
When a company or an individual compromises one time, whether it's on price or principle, the next compromise is right around the corner.
Positive thinking will let you use the abilities, training and experience you have.
Desire is the mother of motivation because that is where your motivation is born.
If you are somebody to anybody, you're somebody.
Go as far as you can see and you will see further.