Maybe you should go through the whole alphabet course then delete it three times then next do the parts where you translate it back and forth from Korean to English
But you shoud do at least one lesson of Korean to English translation every day for at least a month to avoid forgetting the alphabet after you complete the alphabet
If you are not using the Alphabet every day you might forget it
Verb is at the end of simple sentences
So I think I was studying it at least 12 hours per week for maybe 1 to 2 months
But I would still forget at first
But now I can go for months without studying and still remember
After you relearn it enough times it stays in your memory
So after you learn the alphabet well enough then simply translating sentences forces you to use the alphabet every time you read or write
@Stahesh
Continous translating at least once a day helps prevent forgetting but I would be translating at least 7 hours a week when not listening to lectures or reading a textbook
If you take a notebook and write every combination of one consonant followed by one vowel it will take a long time but it will help your memory
Pay careful attentiom to if the vowel goes to the right of or below the consonant