LOL Anthony! Here we go again.

You have got to be patient!
With a new snake I advise putting him in the enclosure (hides included! and leave it alone for at least a week, even two with nervous snakes.) This snake is freaked out. It has just been jerked out of its world and moved to a different planet! you have to give it time to acclimate. Be sure and get that hide in there so the snake has a place to retreat to. This too wil reduce aggression.
The bite from an 18 inch snake is negligable. In fact you may not even realize you have been bitten if it is a tag and release bite. It will feel like you have been scratched with a peice of velcro. Their teeth are like tiny needles and it may not even bleed. However it is something to be avoided so that you don't accidently break off a tooth. A feeding bite is a little worse as they will hold on and try to swallow you! And allowing the snake to bite you really doesn't teach them anything.
After the week is over if the snake is still striking you can simply drop a cloth over its head and pick it up. If you keep the clothe betweeen your hands and the snakes head it will help to prevent you being bitten. From some reason many snakes, once in hand will start to calm down.