Puppy out of control

I just got a puppy a few days ago, and as each day passes, his behaviour is getting worst. I read and saw a lot of videos on youtube on training and raising it. Exercising him, but the thing is, he doesnt want to play with me much. After a few minutes of exercising he loses interest. Even after changing toys. This just keeps going on.

Treat also doesnt work much on him too. I constantly trains him day and night. And the dilemma of saying exercising him helps with training. But he isn't exercising much. I taught him sit, once he get the treat, he ignores me after that. And I have to use the treat to get his attention again. After a few times he just ignores me again. I dont think I train him for very long, around 5 minutes before he start ignoring me

He also has a lot of bad behaviour like biting my bed, pee pad, his bed. He even started to hump a toy. Which I push him aside immediately. He also likes to bite my face when I get down close to him. The internet says all this can be curb using treats, commands or toys to distract it. But he is ignoring toys and commands.

I've also made a mistake when introducing the collar. Now he just jumps away when the collar touches his neck. And he keeps chewing the collar, when I use treats and command to distract him, it isn't working too.

I also need to start grooming him soon, but I dont have enough time to desensitize him to the equipments or cleaning. I wanted to used wet wipe to clean his eyes from tears and stuff. I used treats and tried to desensitize him to the wet wipe. But he keeps biting the wet wipe or worming out of the wet wipe.

I have work and I hand him over to my friend to take care of. He has a dog too, so they play together a lot. Might this be the problem? He is having more fun with the other dog that he ignores me?

I am at lost on how to train him or where to start.