write a book...

wonder if i have it in me to write a book... i have thought a couple of times about writing so maybe this summer when i have some free time on my hands i will sit down and try to write. i have started stories before and at the thought of other people reading them just deleted the entire thing. it seems like no matter how fictional i always fear people reading into things... or if it is a non fiction that i decide to go with is it too much for people to grasp? ... so my few followers... what are your thoughts????