Hair Help!!!

Okay ladies,

Last night I was researching how many times a week I should wash my hair and what I should use. I read washing it everyday is bad, but idk. lol

My hair gets dry, frizzy all over and oily (only on the top). My hair used to be long but had to cut it short because it was breaking off to where one side was shorter than the other. It was really bad. I was thinking of shaving my head to start all over and just buying a wig to wear until it started to grow. But i am not sure how long that would even take to grow back. I have put my hair through a lot since high school and even after that which was 2008. I regret dying my hair, stripping the color and dying it again about every 2 weeks or every month. It was bad. But i really want my soft amazing hair back, and it is to the point where i'm thinking of shaving it all off.

So what hair products should I try, is clarifying shampoo worth it to use once a week to get buildup out if i have any? Please please help.

Thanks in advance!