The best way to predict the future is to study the past, or prognosticate.
Confidence comes from discipline and training.
Your mindset matters. If you don't have the mindset of a wealthy person ("How can I afford it?") versus a poor person ("I can't afford it."), you will never achieve wealth.
What you think is real is your reality.
If you are afraid of making mistakes, you won't learn anything and you won't make much money.
Don't cut up your credit cards, the problem is not the cards, it's the lack of financial literacy of the person holding the cards and always make the best out of a bad situation