Haha I think it's also the overthinking/babying the plants too much but at the same time being confident that they're hard to kill that I managed to do that. It would've thrived honestly if I just left it alone.
Now I've learned my lesson and I just leave them alone and next thing you notice is a new leaf! Thankfully they didn't fully die and I was ready to accept it since I also had propagated some hahah.
It's best to give them fertilizers once in a while cos apparently it's so easy to overfertilize an indoor plant. So what you're doing is already enough and be careful I guess if you wanna change stuff. :D