I've had very short hair in the past but I wouldn't do this as I have a scar from a head injury on my scalp (unnoticeable to others but I am very aware of it)
Also as my hair is naturally curly I fear growing it back again would result in a very odd lacklustre Afro type style at one point - which is what happened growing out the short style and the only way I could manage it was a shit ton of gel!
It's long at the moment and I cut a little off today, may cut a few more inches tomorrow as it's still too long for comfort but it's better to do a little at a time
Totally up to you @HeIenaDove but if your hair is very long at the moment it is quite a drastic change and so much of who we think we are is tied into our hair.
My mothers aghast I have long hair over 40!