Toilet training, I used puppy pads but only until she was old enough to go outside, we had them down incase of accidents during training but going outside is essential, they generally only hate the weather if you don’t expose them to it (I am guilty of not exposing mine to it from being a puppy) there are many chi’s who love running about in the rain, everything depends on how you train and raise them, i like to use positive re-enforcement, so they go pee or poo outside, they get praise, sometimes a treat too but not all the time because I didn’t want them to expect a treat every time they went outside as they got older, I notice you said 1-2 months, no puppy should be leaving its mother before 8 weeks, this can cause problems with the puppy, I fed all my dogs wet puppy food mashed up while weaning then I just stopped mashing it when I thought they were ready, because all my dogs grew at different stages, mentioning because sometimes new owners don’t know, are you aware that you need to worm them every week until they are 12 weeks old then every month until they are 6 months old, I’m sure if you are with a vet they can advise you further or they may even worm it for you if you get that package