stable to weekly

Jan 11, 2019
Good day guys,
I'm currently using the stable eu rom in my mi max 2.
I would like to try the weekly 9.1.10.
What is the proper procedure to do it, can I just install it over the current or should I wipe the data partition first just like in the procedure for first install?
And also, can anyone please tell if it is advisable to go to weekly or just stay with the stable?