I find it interesting that someone such as yourself would not have a guiding person in his life given that you seem to love learning from other. You also have a great attitude towards risk vs reward and failure so taking criticism doesn`t seem to effect you negatively. I am curious as to what causes those mentoring relationships to end so fast with little positive effect? Could it be something on a subconscious level that you haven`t defined or discovered yet?
Well on another note I tried to help you define "depend" via search engine and found that the word "rely" pops up a lot. So instead of "self-sufficient" it may be slightly more appropriate to use "self-reliant." These are just my thoughts and I did find it tuff figure out a good one word antonym.