Welcome to Wanikani @ookeyan !
Please don’t mind us teasing you. I had similar thoughts when I first started, and for a few levels after that, but once I got past that I have found it invaluable. It starts slow but speeds up rapidly. I had previously lived in Japan and passed JLPT N1, but my kanji has never been better than it is now.
PS come and join one of the book/manga reading clubs while you still have some free time.