There is no good sign of seeing a donkey off. Tabeer is a bad sign if you are seen riding off of a donkey, according to Islamic interpretation. You should stop believing in bad things so that you will have good dreams again. Here is the section of the alphabets given on this website where you can see further explanations.
If you see in your dream that you are getting off from donkey is a good sign. It means that you are not foolish person any more. You will be fine mentally. You will be rich because of your good mental work. You will start to use your wisdom in your life.Getting kicked by a donkey and falling off it are bad things. As far as the reality of dreams is concerned, it is simply a matter of spiritual strength.As a result, people should relate their spiritual strength as well as their dreams. You'll find well-researched information in all the dreams.