is it a baby or adult? Babies tend to bite more and be more afraid. Also, take it to the vet to rule out any health problems. If it's in pain or uncomfortable, it will bite when you try to touch it. Other than that, just keep doing what you're doing. Try hand feeding it, and rather than just swooping in and grabbing it, lay your hand in the cage for a while, stay very still, and use your patience!!! Do this several times a day, and your gecko will see that you are not there to hurt it. Remember to be quiet and move slow, and you should start to see improvement. just keep at it.
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1.0 Pastel/Jungle Leopard gecko from JL (BJ)
0.4 Normal/Hi-Yellow Leopard gecko (Beatrice, Goldie, Freckles, Pepper)
0.1 SHCT Leopard Gecko (Brite)
0.1 TBD Leopard Gecko (Rainbow)
0.0.1 Tang Nearly Paternless (Peaches)
0.0.2 Corn Snakes (One snow, One red albino)