You are not alone in failure,start afresh and win the race.freedom to feel,realize where went wrong.
1 laziness.
2 not supervising.
3 not practicing step by step.
4 over confidence.
5 calculating not on cost but profit.
6 trusting on theory.
7 discussing to show your ignorance.
8 feeling inferiority complex.
9 not limiting on expenses.
10 now just start and become teen aged.
There is no time or age limit to smile,feel good when you kick out past mistakes.
Every mistake is a new weapon on your hand.
Your enemy ,completions cannot withstand your speed of recovery.
Life is just forward movement and death is due to absence of breath.