Reading about your experience, I can relate. It's pretty disappointing when the people in your life can't seem to be bothered to engage with something that's so important to you (and instead of talking about it openly, they say they'll look into it but never actually do). And it can be quite difficult to get the kind of feedback that actually helps you improve your work.
At least the internet offers a number of opportunities in this respect. Getting your work 'out there' and finding people who will give you honest feedback. Sometimes it's even easier because they're strangers (at least for me).
I bought your game on Steam (and got all the achievements *yay*).
The story hooked me immediately. I prefer mystery without gore, so I felt right at home.
I liked that you kept the story tight and focused instead of including extra filler to increase the word count. To be honest, it's the filler that often makes me lose interest in visual novels - that and poor characterisation. Which brings me to ... the characters.
I found them likeable and (more importantly) consistent. They felt human and not like character tropes. They didn't flip-flopp around in personality or make stupid decisions just to move the plot along, which helped me feel like I was really getting to know them and didn't leave me scratching my head as to why this or that decision led to a certain outcome.
Now I've seen that you've released a demo for another game. I already had that on my wish list, so I'm definitely going to try the demo.
It's good to see that you're not getting discouraged. Keep doing what you love. I'll be keeping an eye on your future projects.
~ Mara