How can i be talkative when my life is so empty

Hi, i'm 24F very shy and kinda of loner but i have been struggling so much to keep friendships with people because i don't know how i can talk to them my brain always foggy and i have nothing to say to them because my life is so empty nothing but sad and depressed always in my room. so i want to change that but i can't because of my life when i have nothing to talk about i'm not an interesting person:(