Sounds very familiar! Kittens can be very pushy, but so sweet!

One answer can be to get another kitten of approximately the same age. Then they can bother each other instead of you. It really isn't much more expensive, and your kittens will have companionship while you are away. It often makes them less demanding.

Another aspect is that your kitten will probably grow out of this stage. You are on the right track, just be patient. (I know that is difficult on short sleep and with nipped hands!)

You can also try the old parental standby -- keep the kitten awake more and play with it more during YOUR hours...then the cat will need to rest more while you rest.

Good luck. There is no instant fix, but you can get through this! Give your kitty a rub on the head for me!