I split the difference, since I work outside the office, have a reasonably long commute of one hour one way, and sometimes have overtime. My adults split a small can of wet food twice a day (when I make my breakfast, and whenever I get home) and I leave a measured amount of dry food down for their nibbling pleasure. I replace the dry food each morning.
My boy was overweight when adopted - with help from my vet regarding my cat's caloric needs, we identified how much wet and dry seemed a good target, and, blessedly, Dante lost three pounds and is a nice healthy weight now. I was always lucky with Dharma - she self-regulates herself - I wish I could do that myself!
Since you really can't leave wet food down more than 30 minutes at a time, for me, with my schedule, I'd definitely leave dry kitten food out for a growing kitty - you can start doing measured amounts when she's matured. If you're frequently home on a daily basis, wet may be manageable - but it can be hard for those with schedules outside the home.
And, honestly IMO, you've got to work out what your cat does well on, what she wants to eat, and what you can get and can afford yourself., and what will work with your daily life Don't beat yourself up over what works for other people - if your cat is healthy, happy, energetic, has a nice coat, and poos & pees well, who can really argue with that? Especially if she's getting regular vet checks to get that objective assessment as well.