The best way to learn how to write the characters is to write the characters.

Like with a paper. And pen, Or even a pencil.

https://www.mdbg.net/chinese/dictionaryis a good resource for this aspect of Chinese, as is

https://dict.naver.com/linedict/zhendict/#/cnen/home

It really is important to get the order of strokes correct. Mdbg.net has all that shit, including radicals, and stroke order. That would be a good place to start.