First time using any advice ?

Hi guys I was given a 25mg dose of spiro for hirsutism due to really high androgens and testosterone (my endocrinologist is planning to let me go to 100mg if I tolerate it) what advice would you give me in terms of how to get used to it minimise side effects my gp said just take it in the morning after breakfast but I heard it makes you pee a lot/ dizzy ? What’s the ideal water intake when on this I drink about 3L a day anyways and making sure potassium doesn’t get high ? Any help would be appreciated