I think it's best to not let it get to you. I can easily imagine reading such negative comments about a work of passion is super shitty but there is no point in dwelling on it. Try to either filter whatever usable feedback you can extract from it or just ignore it. It's not as if you're making a living from this so you don't really risk anything by just glancing over negative feedback instead of taking it to your heart. Given the nature of porn games I feel like it is easy to get reactions that are on either ends of the spectrum, if people like stuff they like it a lot, if they don't like it they often really don't like it.
Also I got to play your game for a bit, just stopped at some point when I realized it was much more reading than I anticipated & more complex to navigate as well, which means I have to give it another go when I'm not as tired and more in the mood for this sorta story. Didn't get a bad first impression by any means, there are some things I'd have done differently but that doesn't say much. The way things go at the start of the "academy" seems a tad bit quick to me and I'm not sure how much I liked how it went, but admittedly I didn't try different choices, so if these make a big difference I'm oblivious to it. Also, even for the path I saw, I wouldn't really be able to come up with anything that should have been changed & the pace being a bit off is not something too important as long as it doesn't feel rushed all across the board.
1 aspect perhaps worthy thinking about whenever you have the time is that asking players to kinda make calls on characters (more specifically if they wanna trust those characters) they have barely interacted with at that point in time leads to blind guessing, which can be a bit frustrating, depending on how much stuff gets decided by that 1 choice. Please keep in mind I'm just going by the bits I saw so far, might have a wrong perception of the moment(s) in question, just saying I did feel as if there was no way for me to base my choice on anything there, except if I could potentially see myself interested in getting lewd scenes with the characters in the future.
Also the settings you provide are neat, but kinda unclear, like for example how does the game handle the non-human encounters, e.g. beasts could be either male or female, same goes, technically, for entities of whatever sort that have tentacles. Is the game coded that way and therefore sensitive to having on non-human stuff but no males? Or, of course, what does even count as non-human? I'm fairly sure a lot of people would agree that it makes a difference for them if they encounter a sex scene with an actual dog or a dog-girl/boy.