Stopping Rogaine after 9 months

[jinx]

I had very severe balding when I started Rogaine, Androcur, Gefina(=Propecia), and Progynova (estrogen).

The hair growth has been amazing, but I'm starting to shed a lot of it. Since my target is very long hair, I don't think this shedding/new hair routine is going to let me have what I want.

Can I taper off Rogaine use to not lose all of it? Or replace it with another medicine?

Will I potentially lose even more hair than what I started with, taking into account the whole other slew of meds?

What is my best option for really long hair that wouldn't fall off? :<