Bought a new puppy 4 months ago, he's now 6 months. I feel like it's the biggest mistake ever. Him and my 6 year old dog still don't get on, there's a lot of fighting and jealousy. I have developed a bad back and struggling to walk them together, puppy is strong and just pulls constantly, so having to do four separate walks a day, although other family members do help. I try to keep him out of certain rooms but he just throws himself at doors and manages to get them open, when shut in the Kitchen for a short time he whines and scratches woodwork. He has pulled wallpaper off 2 rooms in the past week, caused £200 worth of damage to trainers and coats etc ( despite reminding teenagers not to leave shoes where he can get them ). He constantly whines to go out and no sooner has he come in but wants to go out again- I can't not let him out in case he wants to wee. I am constantly up and down. Tried to have a one hour lie in this morning after dh had left as I have been on nightshifts over the weekend but even then I couldn't as he was whining and scratching the kitchen door. Our other dog is miserable, I am miserable, just don't know what to do.