I can only sympathize with your situation. Yes, the walkthrough is terribly written, and the lack of a hint system makes the game extremely difficult to play. I can only share my experience. I went through the game strictly according to the walkthrough sections (the sections correspond to the releases of the game). Eventually, albeit not immediately, all the triggers worked. Most importantly, never meet Cleo at early stage of the game, it leads to softlock. Do not use cheats, except for the money cheat. Improve your relationships with girls and your own abilities gradually, step by step. It won't take much time. Accumulate as much energy as possible. This can be done by staying in the living room at night instead of going to bed. But the scenes with Susan will make you fall asleep and lose energy in the morning. It is not terrible, having passed a part of the line with Susan, you will have everything ready for the development of relations with her without TV viewing, and it is not difficult to accumulate energy, spy on Stella in the shower, spy on Michelle - here you have energy (mostly I spent it on becoming invisible).
In general, I can only compare this game to Tangled Up and The Foot of the Mountain in terms of mocking the players - the same pointless repetition of the same actions, lack of normal walkthroughs, etc.
