Why not make a tincture from each, then combine the tinctures in a variety of ways to find out which is most effective for you. When you figure it out, make a note of it. (Let us know too!) And when you make your next batch, use that combination.
By making three seperate tinctures, you could also experiment with rotating them. Use Wormwood for a week, switch to green Black-Walnut hull, follow up with cloves, as it is used to kill eggs. Skip a week to give the body a rest and repeat the process.