How to improve Croatian keyboard experience on iPhone with better autocorrect and predictive text?

In Croatian keyboard, it is really dificult to type anything without letters č, ć, ž, š and đ displayed. I have to press s, z or d long to type then and it is not practical at all, it takes too much time.

I tried using autocorrect, but it almost always suggests wrong words. I don’t have “predictive text” option in Croatian language, so I can’t choose the correct word. There isn’t a way to make my typing in Croatian easier.

Is Apple planing to make our lives any easier?

[Re-Titled By Moderator]