Hey guys, so me and my girlfriend adopted a german shepherd mix puppy from a humane society about a month ago, he was 3 months when we got him and he was a pretty good pup the first couple weeks. He was improving on potty training by the day and was nipping as puppies are known for, but not too bad. He is 4 months now and about a week ago he has gotten worse day by day. We put him in his pen as usual but he will not stop whining and barking until we let him out, and when we let him out all he does is bite all over our body. Arms legs ankles face you name it. We attempt to put a toy in his face (we have multiple toys) and motivate him to play which he will do for a second and sometimes for a couple minutes, but then proceed to bite our body as for some reason he prefers us. I have multiple bandages from him drawing blood and tons of scratches. He growls and barks while doing this also at times. We have tried bitter apple, a firm “no” or “off”, we tried yelling/screeching if he bites to hard, nothing seems to work. If we put him back in the pen he repeats this process and we live in an apartment so its not easy to just let him make a lot of noise. On top of this he has now started pooping and peeing inside the house way more often, Maybe 3-5 times a day. We take him out every hour or so and sometimes he goes outside, but when he comes in he will just go poop or pee inside no hesitation. Last week he was only having an accident maybe once a day. Sometimes none a day. he has a vet apppointment soon so im gonna let them know whats going, but i wanted to see if anyone here has any knowledge or experience with this situation. I know they are known for being “landsharks” but its gotten to the point to where i dont know what to do with him anymore. Inside the pen = nonstop barking/crying. outside the pen/playing = biting us nonstop and drawing blood, and growling. We love animals and dogs especially so we always give him love and affection but its hard now and we are considering possibly getting a new dog. I work 9-5 weekdays on top of this and its just extremely tiring and stressful. Any tips would help. Thanks for reading ?