[YorkieMiki]

Thanks for you advice guys! I am going to try everything above.

I also appreciate the stories, so I know I'm not alone haha.

I was wondering if I am giving him too much attention? I am with him all the time. I do work on his alone time when I am working from home. I leave him crated or in his pen throughout the day as well even when I'm home to practice his alone time (often just an arms reach away or in the same room even though he whines).

But I don't like to leave him alone and have been taking him around in a carrier on errands and stuff. Should I be leaving him at home more? He has only been home alone a few times the longest was 4 hours once (earlier today), and 2 hours once and a 3 hour period once.
Is he too young to be left alone or should I start working on his alone time already? He's just 13 weeks old.