I will get 8.5 for Ielts test

No one and nothing will be able to prevent me to do it.
Nothing. Useless thinking will be the biggest obstacle but I will conquer it.
The first time in history, I am seriously conquering myself.
I must do it. It is not a joke. I must get 8.5.
Useless thinking has harmed me too much.
I regret the last 21 years and I could not tolerate myself if I continue that.

I have been rubbish but I will not continue to be rubbish.