Amy,
I have had both boy and girl dogs and they are both equally precious. I personally think the boys tend to be more lovey dovey. However they take a little longer to "get it" in training. Once they do though they are more willing to always give you what you want. The girls tend to get the "humph" attitude of I'll do it when I get ready. I guess that is why they are referred to as "bitches".

So far, I do not think you have expressed any concerns that are not normal puppy behaviors. They do tend to test your patience. Four months is not too early to have Nebo neutered. I recommend between 4 and 7 months to our new puppy owners. You want to do it before the hormones kick in. In females before their first heat. They come in season as early as 6 months but more common is around 9 months for the first heat. It has also been know to be as late as 18 months in some girls.

You are doing a great job. Just keep thinking positive and establishing yourself as the giver of all good things and you will see Nebo bond with you completely at around 6 months of age.

Puppy Kindergarten is excellent. If you find a class and need help in expenses, please let me know. I would be happy to help out if your parents won't help you out. This class is very important to his socialization of other animals and will have a lasting impact on him for the remainder of his life. We could consider it a down payment on the portrait of Dixie and Dusty you are planning on doing for me.