You must train yourself to differentiate between imaginary obstacles and real obstacles. Imagined obstacles are false limits you project. If an obstacle is right in front of you, you can do something about it. If an obstacle is only one you’re imagining or anticipating to be there, the answer is to simply drop that hallucination and keep driving yourself forward. Ask yourself: is this obstacle actually in front of me or am I just anticipating or imagining that it will be there? Is it in front of my senses or is it in my head?