I looked up a few textbooks near me. If you have someone around you who speaks urdu it's good to be around then when they speak so you get exposure to the language. There are great online resources as well. Urdu pod has a good youtube channel as well and I think they have a membership as well. I learn a lot from recipe videos because I enjoy cooking but you could pick songs, movies, maybe travel vlogs in urdu, basically something you enjoy and try to absorb from there. If you like grammar charts (I do...maybe sad lol) a textbook is great just for referencing sentence structure, conjugation, tenses. You could choose topics as well and start gathering vocabulary on it. I got quite a understanding from learning on my own but I really like taking classes on here. Muskan Rida is a great teacher, very flexible and picks up on what the student needs so you may want to contact her.