Hey Yuuto, we've been following this for so long, its alright to take breaks, especially for your mental health, we will wait as long as it needs to be, don't worry about the other people that insist that it needs to be done, they are just impatient.
Take your time, things will work out later, and don't push yourself too hard, ok? I'm sorry things didn't work out, but hopefully in due time, you will have everything back to schedule, and a nice needed break right now! :>
Don't give up, we love and support you, as you are one of the best, if not the best, fnia anime visual novel makers out there! <3 You got this, and even if it comes to the worst, at least you did your best, maybe even upload everything so someone else with your information and supervision could finish the project too! :D