I recommend the app Kana Town for practicing Hiragana and Katakana. Especially the weird compound ones. It is an SRS app with the option for practice tests while the SRS is reloading. You can play the Hiragana and Katakana to your hearts’ content. There are no ads. I used it to get my kana under control and you can too!
I have no connection w/ this developer! Just passing on a suggestion because I found WaniKani through someone on Reddit similarly recommending something that worked for them.