When making important life choices, do your research. Become educated. Before I built my house, I watched hundreds of home shows. You need to know as much as possible, as much as the experts. Educating yourself will arm you with the knowledge to be secure in your decision. There is nothing to fear.
Remember, if you make a bad decision, you can always make another decision. Nothing is permanent, except death, but give yourself enough time to experience the situation and make the best of it to know if you have made the right choice.
When making decisions, don't ever let fear stop you from what you want in life. People are afraid of failure, making mistakes, missing out or losing money. Most people are afraid of not being good enough. Wanting to be perfect leads to procrastination and kills more dreams than trying and failing.