Keto?

I'm almost 8 mths pp. I am wanting to start keto but don't know where to begin. How do i start off as in getting my body in ketosis. What do I eat. When do i eat. How often should I exercise. What types of excerises should I do. I'm a stahm so I do have a lot of spare time to meal prep and so forth. I just need some guidance. When I look online I am so overwhelmed mainly because there are so many different ways of doing keto. I do not want to mess up. I really would like to get healthy for my children and live a longer life. Any help would be appreciated. Thanks yall.