Will mistakes be made on your DIY project? Yes. Will you regret certain decisions? Definitely. The good news is that, if you attempt the project yourself, you can brag about whatever you accomplished or you just might have a good story to tell from the hospital.
I wonder why there's no reality show about living in a house undergoing repair? The scenario's got everything: endurance, drama, living by your wits, sleep deprivation, fight scenes, transformation, the ruthless culling of the weak, and ultimately, hopefully, a happy ending.