How did my project come about?

The development of my question and its eventual evolution into my final project is fairly interesting, at least to me. I have a friend back home who owns an axolotl, and mentioned that they can regrow limbs around the time that we were asked to develop a question. I decided to search around about how this regeneration occurs, and I came across an article on how there were 10 commonly regulated miRNAs between 3 species capable of regeneration. From there, I came up with my question on if these miRNAs could help healing in a mammalian system. After creating my project outline, I realized that treating wounds with 10 different miRNA treatments would prove to be extremely complicated, especially for this project. I read further, and found that miR-21 was the most upregulated of the 5 commonly upregulated miRNA, and decided to focus in on in. After spending many hours in the library and searching for sources, I developed my question into an experiment, leading me to where I am now!