It means that there will be many difficulties and hardships in your future life, and there will be many ups and downs in your life.
From your description, we can see that no matter climbing stairs, roofs or steep slopes, we finally climbed the Great Wall.
It can be seen that when you encounter setbacks in life, you will spend the rest of your life safely and smoothly. No matter how difficult the road ahead is, you still have to go on, just like climbing the Great Wall, and you will succeed in the end///
good luck ...