LG
you are correct that every person must do his/her hishtadlus. but once you’ve worked hard-many years-on your faith & trust in Hashem. taking medicine-which the person will still take when necessary- will become an ACT cause it will be %100 fake to you due to the fact that you have reached this DEEP HIGH LEVEL of bitzchon & emunah in Hashem & you have come to realize that only Hashem can save you. millions of dollars cant save you neither the Gadol Hador neither Obama can save you ONLY HASHEM CAN HELP/SAVE YOU.
start working on yourself now & build up your relationship with Hashem personally-through learning chovos Halevovos & making the messages in the sefer a part of your life-this will help you reach this high level of closeness with Hashem & remove this physical world from you. (i.e. EVERYTHING physical will become a fake actor to you. from doctors to clothing to cars etc… cause you will know 24-7 that its %100 percent ALL HASHEM)