How to not forget letter when memorizing vocabulary

How to not forget letter when memorizing vocabulary
someone help me ??

I seems I have to same matter with me.

You mean accurate spelling?

Yes

Try to colorize it with colors. It helped for me a while ago.

Will you please elaborate ?

I used to use a note card app on my phone. That way whenever I had a free minute, I’d whip it out. It is also possible to use memory palace, but if the goal is immediate results, you would need palace experience prior to starting to make it worth your while. I also used to just write each word five or ten times in a row while saying it out loud, that helped me remember and be able to pronounce words.