(1) former friend: It means before, and the problem in this dream is now. If you want to go back to the past, it means that your present environment can get little help (the help of friends).
(2) climbing mountains. I believe many people will agree that climbing is to change the existing situation from a higher environment.
(3) below is a cliff. That means you have no way out, you can only move on.
(4) Synthesizing the whole dream, you are in a sea of suffering and want to make changes, but you can't do it yourself, so you have such a dream. To satisfy your real desires (that is, success). Many people also dream that they encountered difficulties in exams when they were students, and they want to enhance their self-confidence through past successful experiences.
The whole dream gave us some suggestions:
1. You can make new friends.
In the face of difficulties, be brave and don't be afraid. I believe you will succeed.
I hope you can adopt it. If there are any shortcomings or things you want to add, we'll discuss them.