Indeed, no extra language support, you are doing pretty good if you managed to translate the dynamic text. Strive has a Discord here: https://itch.io/t/284398/discord
Feel free to stop by the mods section to ask for help. If you can identify the exact text locations (a screenshot of the text would be great, even better if the text has a colored box to point it out) that you need to access, I should be able to figure out a method of changing most of them.