Hi Angie,
Welcome to YT you have come to the right place. Wow, he is young and so very cute. Best wishes for a lifetime of happiness with your new little furbaby. There are so many people on here that are so good with giving advice and things to do to keep them healthy and striving. I know you will get lots of help. Lexi was young too when we got her and I went through a lot of worries and still worry. I love reading everyone's post as they do help so much. I bought Lexi some Nutra-cal for puppies and that helped her a lot as she is not a great eater it seems to give her energy and she seems happy. Hope I helped a little....your little one is lucky to have you
Hugs Cheryl & Lexi