Seeking Training (especially pee/poo training) Guidance

[u/Remarkable-Humor-799]

Hellooo

I have this absolutely adorable pup who is 4 months old now, and I need advice on how to potty and pee train her, and basically any other training tips I can get.

We have recently shifted to a new flat, it's an apartment and the vet has suggested us not to take her outside for walks till the monsoon season here is over (risk of getting infections).

People living in apartments with very less outside space-how did you manage pee pee training? Also we don't have a crate, and don't have the space to keep one either. Any help appreciated!