Hi everyone, Im krissy! Im new to forums and have joined in the hope that someone might be able to give me some advice.

I have a five month old male black labrador, who is terrorising me. He is always trying to bite me i can be sat down and for no reason he will come over and bite me. When i tell him no it just seems to make him worse! I have tried holding him down to the floor, putting stones in a bottle and shaking it and even smaking his bottom. I have mobility problems with my leg so i struggle to pick him up to take him outside and lock him out and i think he knows this as he throws himself on the floor so i cant pick him up. If my partner tells him no then he stops straight away and he even listens to my five year old son. But no matter how firm i am with him he will not listen to me.
Whenever he knows we are on our own he will start to bite. I walk him twice a day and im the one who feeds him.
Can anyone give me any advice, tips or recommend a trainer to help!

Thanks!!!