first time haveing a snake

ive had my little buddy Bonez for about 3weeks now, cool pet to have around. i want to learn alot about it and everything ill have pics up of his case and everything, just wondering how i could control or measure humidity and stuff, also 2 days ago his eyes turned cloudy so i figured he would start shedding but then they went back to normal again and doesnt seem vicious at all and he ate yesterday, 2day i was holding him and i was smell somethign horid once in a while so i was wondering if they far sometimes? so i woaked him a little and i noticed a flake of shed came off.
wondering if anyone had some information, thanx any info, ill get some pics up soon