Don't quit when things get hard. Use the hard times as motivation for you to keep trying. The only time you should quit is when things are good, not when things are bad. Seeing results will not ever happen right away, these things always take time. When you are about to give up just remember it can always get worse and revert back to training or a fellow coworker for advice. You have to commit to what it is that you want 100%. If you don't commit to things in life you will never be successful and advance in the work that you do.