Assalaamualaikum wa rahmatullah

I am struggling with Arabic typing for quite some time now. I have visited the Arabic forum and seen every page, unfortunately havent found help there . I request any good advice for this. I have all the fonts I could need, but cant figure how to add the fatha, kasra, etc. I dont really want to use the online keyboards where I copy/ paste as I have serious need to learn this on a permanent basis.

jazakallahu khair

wassalaam