1.) How old were you?
About 21 a few months after my disfellowshipping.
2.) Which person/source first made you reconsider your position on creationism?
Carl Sagan and his series Cosmos.
3.) How long a period of time did it take to fully convince you?
Almost immediately.
4.) What books and videos did you read and watch?
Cosmos book and television series. Other books like People of the Lake by Richard E. Leakey.
5.) How much better do you think you understand biology is now vs. before?
Not too much into biology per se but I have a general grasp of the full spectrum of evolutionary change in inanimate matter - elements being made inside of stars - and how it leads up to elements that make up life.