“It does not matter how slowly you go as long as you do not stop.” – Confucius
Keep on keeping on! Go the distance. It isn’t over until I win. However you want to word it, you keep moving in the direction of your goal. Some goals come easily. Others take weeks, years, even a lifetime (or more). Don’t stop. Don’t let any setback, no matter how trivial or how severe, stop you.
If you find a mountain in your way, go over it or around it. If you find a ravine in your way, build a bridge or climb down & back out. You might not make much forward progress during the time you are surmounting your obstacle, but you are still moving towards the goal.