I suffer from agoraphobia claustrophobia aerophobia and aracnophobia what can i do?

I hate being outside which isn't good for me as i have to go to school claustrophonia as i am stuck in my room and it is smaller than my brothers so i am petrified aerophobia as i have to fly to spain this year to see my grandparents acronophobia is worse as my room is full of spiders in the evening and i never sleep at all