Hello, i need help with how to make freeze dried bloodworms very healthy for my fish.?

If you are refering to the type of blood worm commonly sold in pet stores (midge lavae) then you shouldn't have to do anything other than feed. Most companies fortify the larvae with vitamins and the larvae themselves are great for extra protein and to simulate natural feeding behavior. If it is freeze dried you should be able to pick out single larvae. If it's frozen into flats or cubes you can soak in water and feed with a turkey baster, or cut off small sections with a knife if it's for a single fish. Hikari seems to have the best quality for both freeze dried and frozen, followed by omega one.