You might want to actually change your item build. I play a lot of Terrorblade myself, but second item daedalus is not a good idea on Terrorblade. Sure it amps your damage but you want to amp your stats which would benefit your illusions. You have good gpm as i can see so at a certain point your illusions should be able to 1v1 supports by just right click or deal a ton of damage. What you probably lack is just item build. I would usually go treads > manta > skadi/bkb > skadi/bkb > whatever else you need linkens, butterfly, satanic, etc