If you like landscape painting, but have no foundation, then I suggest you read Mustard Garden first and learn it briefly. You can learn something formal and use a pen, but "God" and "Qi" don't have to be exactly the same. There is also "God and Qi" in calligraphy, which I think you should understand. After learning to use a pen, you can learn the painting Ming Si Jia-Shen Zhou, which is very suitable for beginners. In the meantime, look at more good things, master's things, and bookstores have plenty. The more you look, the higher your horizons will naturally be. Don't be too meticulous in landscape painting. Painting is looking for feelings and following them.
Calligraphy and painting are not separated. Since there is a foundation, let's get started quickly. If there's anything you can't ask.