Hi! I am 18 years old and i got my Yorkie 2 days ago!

My boyfriend bought him for me for valentines day. (What a sweetheart) I absolutely adore him! He is 10 weeks old.

I am wondering how much to feed him. I'm getting many answers, some saying keep food for him out all the time but that way i would think it would be harder to keep track of potty time and others said feed him about a cup or so of food a day but split that up into four times...if that makes any sense, haha but also, I am starting to potty train him and I am wondering what is better/easier to do....Training pads or outside? And also, I am starting to crate train him. Any advice on that?? We will also be starting a training class the weekend after valentines day. Any advice will help! Thanks so much!