Where to Start??

I'm wondering how successful I can be at creating a blog all by myself, and trying to decide how long it will be before I need to ask for assistance from my 15 yr old.I've been VERY happily married to my best friend for 17 years! Each day gets better... My children are 15, 14, 12, and 8. My maternal grandmother also lives with us. We're a very happy family.