Nothing in the world can take the place of perseverance. Talent will not; Genius will not; Education alone will not; there are many people who are very talented and educated and geniuses, yet are unsuccessful in many areas of there life.
Persistence and determination creates an inner energy, perseverance of the two snails got them to the Ark.
To keep going, you may trip or stumble along the way, or even get redirected a few times, I have never heard of anyone tripping or stumbling when they are seated and not moving in mind and body.
Try and try again, if you first do not feel you have got anywhere, think about it, you have learned along the way how to redirect your energy and where to go next. Your strength and clarity will appear with perseverance, give it a go, take that step the first of many.