Memorising hiragana and katakana
We're no computers and our memory is different but frankly better for what we can do with it! However, it's a process to improve when it comes to memorising something relatively abstract for us like hiragana and katakana.
A Beginner-Friendly Guide to Japanese scripts: hiragana and katakana
Japanese scripts are not easy but when you start the right way, you will save yourself a world of bother.