how do i deal with constant medical issues

the past few months of my life have been hell, it feels like there something everyday. I think ive been to the most times the doctor this year in my life. Just yesterday i found out i have a chronic skin condition which isn't too bad but than something else happens and im back at square one. It so hard to deal with this I hate this feeling. I feel like life will never go back to normal Im in a constant cycle of slightly better than going back to rock bottom im so tired of this and my mother is having a lot om emotional problems lately which has also, put a bunch of pressure on me I'm only 18 and i feels like this is the worst year of my life and i cant do anything about it