How long does it take to do a walkthrough?

I was thinking of doing one but seeing as they are soooooooo long do you have to do it all at once or do you get as long as you like to do it?

It takes months, sometimes years to do one walkthrough. If you're lucky, you can complete a walkthrough through it's final, fully stated version in just a week, but you need to proofread and go over it over and over again to make sure it works and is perfect, and you will need other opinions of the guide and the corrections that must be made. It takes much effort and time. Ask Crossy, he's made one before.

I was thinking of doing one for coolboarders 2.Since thats a shorter game walkthrough wise I could do it in a matter of days.