I am applying for a transfer to a 4 year university from college, majoring in Da

I am applying for a transfer to a 4 year university from college, majoring in Data Science.
University Transfer Application Essay Prompt (300 words limit):
Describe how you have taken advantage of a significant educational opportunity or worked to overcome an educational barrier you have faced.
Help me write up an experience which shows any one of these, or more at the same time:
1. strong leadership, hardworking character
2. good in computer science/programming