I you want your snake to be stress free and eat for you the first step is to leave it alone, NO handling until you snake eats 3 to 5 consecutive meal for you.

You should also make sure that the enclosure is cramped enough, 20 gallons is HUGE for a 75 grams animals (most animals that size are kept in shoes boxes or something similar in size). Security is the number one issue with young snakes.

Also make sure that your husbandry is OPTIMUM http://ball-pythons.net/forums/showt...ius)-Caresheet, and keep in mind that hatchlings are defensive and see you as a predator, they do not hate you, they do not like you they just tolerate being handled but at this size handling should be very limited and only when eating consistently.

The more you handle the more stressed your new snake will be, they grow out of it over time but this is a very young animal, hopefully one that was started and is established.