Hi
I had the same problem too, but what I did, seems a bit cruel but it works.
Whenever my puppy bit me or jumps up at me, I kick him or shove him away. Dogs sometimes do it for attention. When I kick him I don't do a gentle kick because then he will think I'm playing with him and then he will keep on biting me wanting me to gently kick him and play with him. So you will have to show that you definitely don't like it and kick him or shove him with that feeling. Other than that I don't really know what to do.
Hope my feedback works!