Ignorance is ignorance of the law. The ignorant will be destroyed by perseverance, in his pride he wants, he rebels against the law, not knowing that the moth can not defeat the flame.
You shouldn't be afraid of not achieving your goal. One who throws a dart at a target all day can never miss it. Here you can help and chance, and training.
There are no right or wrong decisions. All decisions are correct initially. In the future, if you believe in your decision and force it to move, it grows into the right result. If you give up your decision and give up everything, it becomes wrong.
Self-confidence comes from the firmness of your desires. Nothing can shake my determination to achieve my goal, you tell yourself. The achievability of my goal depends only on me, and I will not give up until I have done everything possible.
The smaller the step, the easier it is to move. You can't jump a chasm in two steps, of course, but if you go down one side and up the other... or, for example, go around it. After all, we live in a limited world where everything has an end and a beginning.