I second Jitai, it does absolute wonders for font reading ability. there’s also a [Userscript] Vertical Reviews that helps a bit with getting a look at vertically written kanji. #japanese-language might have some writing threads with some more information and ideas too.
Also, since it’s your first time posting:
\textcolor{MediumPurple}{\huge \textsf{Hi}} {\huge \textsf{@LeonVerr}} \textcolor{MediumPurple}{\huge \textsf{!}}
It’s great to have you here!
If you haven’t already check out the Forum Guidelines and the Wanikani User Guide .
There’s also tonnes of things on the forums to help you on your way such as The guide, The Ultimate resource list, and API and Third Party Apps.
If you have any questions, check out this thread; but if this doesn’t answer your questions, feel free to create a thread like you’re done here, or email The Wanikani staff.
Good luck, and I look forward to seeing you around!