I've got a black female Enlish lab puppy. She is 9 weeks old today and her name is Lucky . I brought her home over the New Year holiday and spent 4 nights / 5 days with her before heading back to work . Prior to this I had a yellow male lab - Butter- who was 11 when he died . Honestly I didn't remember it was this exhausting to have a new pup . I've managed to crate train Lucky but the first 3 nights was exhausting but I didn't give in to the whining and crying and now she happily plays in her crate and sleeps well in it. The problem I have is with her being super hyper and excited every time I come home from work. She will greet me nicely smiling with wagging tails and I always play games with her ( to reward her for the fact that I've been away at work . My family looks after her during the day . ) and she would get so overexcited and bitey that it felt like she was a completely different dog than the one that greeted me 10 minutes ago . What can I do ? Also what can I do to calm her at night . I usually play games with her in the house ( too many mosquitoes outdoor ) like fetch , hide & seek or chase ( I thought these games would tire her out and they do but she does get overexcited / bitey too ). Should I stop these and play a calmer games ( what are they ?? ) . Thanks for all your help in advance .