You have to condition yourself to be confident in what you are taking up. Have a positive outlook. Believe in yourself. There will be people who will tell you that this won't happen. If you take that to heart, it really won't happen. But, think positively and be confident that you can succeed.
It is very important to set yourself realistic goals. In fact, you have to be realistic every step of the way. You have to take up something that you can be good at, you have to see whether you have the requirements met and you have to see that you don't set yourself too high goals at the start. Also, be realistic about how your family will react to your new enterprise. Don't bank on them too much if you don't think they are going to be very supportive. Don't worry though, when you begin succeeding, the support will come as well.
You have to be staunch in your opinions. You cannot think of doing something one day with the utmost zeal and then forget all about it - 23 - the next day. You have to pursue your goals to succeed. The success
might be slow, it might come in dribbles and trickles at first, but don't let that deter you.
Count Your Achievements
Your achievements in this regard - however small they might be - are important. Learn to appreciate your rewards even if they are just $10. It is only when you appreciate them that bigger glories will come your way. Celebrate even, it makes other people know that you are doing well and reinforces your motivation.
Read about other people who have succeeded. Pay special attention to how they fought against odds in their early days. Everyone has done that. Read about how they overcame those problems. This can be great education for you but, most importantly, it could be great inspiration.
And there you have it!