Is it taboo to write a story with the main character being heavily based on yourself?

I know a story is supposed to be creative, and you're supposed to CREATE a character with it's own personality give it life. But, I can't help but wanting to write a character based on myself, and how I would say things/do things and use certain aspects of my life. I don't know why but It's this like, pull that I'm getting to just do it. But, would it be taboo considering the story wouldn't be ABOUT my life but it'd be like writing about myself(with some differences) in a different world. But I don't want to seem like, cocky or anything. I guess in my opinion using 'myself' as the main character would make it more real and give the character more personality. I hope I'm making sense because I barely make sense to myself trying to sort this out.