Your dream shows your inner anxiety, that's for sure.
You climb stairs in many places, which means you have no clear goal. However, if you regard the stairs as the road you want to go, and there is no end in sight, it means that you are full of doubts about the road you want to go, and even think that you can't go to the end. Steep stairs mean that you think your path to your ideal is not smooth. Seeing the goal shows that your ideal is not far away from you, but you can still get it as long as you work hard. But if you dare not climb the stairs, it means that you are not confident in yourself. Sometimes you even fall from the sky.
The above is just my personal guess.
I had a dream similar to yours, but I climbed the mountain.
Let me give you a reference:
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