I also started playing otome games in japanese almost as soon as I finished learning hiragana and katakana. I found it easier when I also studied the japanese core 2k on Anki before each play session!
I think I wanted to start with Jakou no lyla , which I gave up really early , as it's on the more difficult side. Then I moved onto KLAP!, and had a pretty good time there ^^ that was hard too at the beginning, as I was slow at reading with just the hiraganas too, but I could finally feel some accomplishment with a few sentences pretty fast! ~
Then it was just trial and error of me studying premade decks or the ones I made on anki/migaku/jpdb, and getting obsessed over a game to push me through playing it.
I started playing slow damage quite early as well, as I just really wanted to play it in japanese, becaue I didnt like the localization, and it took a long time, but I learned a LOT from it ^^.
Now I study pretty much the same way. I'm fixated in playing through Tokyo Satsujinki, and when I dont understand something I use yominija's OCR (Mainly this, because I can't really textract from my switch screen, when I play otoges, so I just stick to OCR for everything now) to check the words, and from there I use migaku (or used to use Anki, with yomitan, and a clipboard inserter) to make cards, then ShareX to ad custom sentence audio and picture.
If you can push through the ambiguity, and choose an Otoge that youre really interested in I'm sure you can push thru!! But try to find something easier at first still, so you can feel some accomplishement , so that you can continue trying ^^. (Or just be so obsessed with a media that you read it anyway)