Focus on what you want, and not so much on your “what if it doesn’t” fears. The moment you catch yourself thinking about fearful future stuff, take a deep breath and intentionally choose to see the possibility that what you desire will happen.
The more clearly you can see it, the more likely it is that it will show up in your life. It’s proven that we move towards the reality we see. Make that reality strong, and you will attract the exact situations and circumstances to assist you and support you.