Okay so Im new to the hobby as far as snakes go.

So I got my 6 month old Spider Ball Python from a reputable breeder in my area. The snake was kept in a rack system for its whole life until it was brought to my care .....So basically I got the snake on sunday afternoon I held him for alittle and then put him in his enclosure and left him be ,Monday afternoon I fed him a rat and he took it no problem I have waiting 2 days for him to digest wich he did as I saw his feces in the tank this morning so Im slowly trying to introduce him to handling But here is where i Need help ...so I basically went into the enclosure to get him (got Bit) ...Slowly was just touching him and he was all coiled up ....took my hand out of the tank went in again (got Bit) ....This time I just stayed in there and pet him on his back so he would calm down and maybe relax alittle bit ....but nope started hissing so I left him be ....Come back a few hours later stick my hand into the enclosure boom got bit again .......Im not really interested in making my hand look like a raw steak lol.....So maybe someone can give me some pointers on how to tame or handle him in a certain way that will make him feel comfortable ?

Thanks for reading and hope I can get some help while I go wash off my bloody hand