Should you give Japanese another try? It sounds like you should. You’ve already made it fairly far once and you’re here despite your setbacks, which tells me you probably would like to learn Japanese.
Should you give WaniKani another try? Ehh.
I’d rather avoid going into how inefficient WaniKani is in terms of “get to immersion quickly”, which it seems is what you want to do with reading. WaniKani forums are a bit of a bubble, I’ll get lynched if I start that argument. (Maybe I’ll link to a way too long video from Vanilla instead, pretty sure he made that point in there somewhere.)
Let me make a more neutral argument instead: WaniKani doesn’t work for everyone. It seems like you might be one of those people. Welcome to the club 
Personally I went through the cycle of “Start learning Japanese while using WaniKani → Quit learning Japanese” two or three times until I finally decided to listen to all those immersion learning people and gave something else a try. Three years after starting over from basically zero I passed the N1 and actually enjoyed myself along the way c:
With the foundations you already have in kanji, I don’t think you need the structure of WaniKani. If I were in your situation I would learn the 1000 most frequent kanji via Anki, which should be a breeze for you, then drop isolated kanji study all together. The less frequent kanji usually don’t even appear in multiple words that are relevant to an intermediate student, so you might as learn just learn the word itself. Less time SRS’ing, more time reading c: