I think it's better to learn from the teacher for a while. The teacher will give you some guidance according to your situation, and then practice in depth.
If you want to teach yourself, I suggest you practice writing strokes first, starting with horizontal, vertical, hook and radical, and then copy the copybook step by step.
When you are a beginner, you should ensure that you practice writing every day and hold the pen correctly in order to write beautifully.
Practice slowly and be patient.
When you write, you should be calm. Soft pen calligraphy is very edifying.
These are my thoughts when I studied soft pen calligraphy. I hope it helps you.