For the people that asking for a save just before the warp mind power, here’s mine. Go use the lust power on mom when's she sleeping, DO NOT let her tuck you in.
My tip for playing this game is that whenever the succubus tells you to use your current power x number of times, x counts towards the number of times you used it to unlock a new scene (indicated by your sin went up by 1, repeated scenes DO NOT COUNT). X will go down whenever you successfully unlocked that new scene (you have to unlocked new scenes x number of times with the old power BEFORE the new) & the next day the succubus will congratulate you, then you get to unlock a new power or level up existing ones.
Yes, doing this is very tedious cuz you have to basically used your power on everyone in the house (except dad) & pray that it'll unlock a scene. When you get warp mind, it'll get even more tedious cuz now you have to combo 2+ powers to get a new scene (for example, the kitchen apron scene from mom is a combo of warp mind + lust + telekinesis). The mana system kinda limited you from doing this quick so I recommend save scum your way to victory here.
Another tip to manage the mana system is the handjob, it's the fastest scene & if you keep holding W, it'll seemingly go by from just 2 dialogues.
Oh & my save is unmodified (yes, I'm still sane enough after getting this far playing the game unmodified, keeping all the ... & pauses) so be careful if you used 1 of the fixes on this thread.