All those things you listed are literally preferences. I always kill Danica and Jake for example, I think it's better content. The walkthrough is needed for the missable content, not the standard one.
Remind me again what the requirements are for Valravn's respect, Saving Laurie, Deadend3, Deadend37, Deadend39, Brianna's Romance, Amber's Romance, Emily's Romance, Unlocking Tiff's rewards.
If you only need the walkthrough for the first choice in the game, I suppose all these I listed are not missable content, right? It's not like you can completely miss Amber's romance if you don't choose a random "I love you", or Emily's romance if you don't "Lean in closer", or Brianna's romance if you fuck up the interview.
You can't possibly miss 80 power/19 skill, 100 power/killing Wepwawet + 27 skill + Deryl Hesitate Option, Meeting Ella with 9 Power, 25 Corruption after choosing Yes, 310 Power and choosing east first.
Do you know how many people, even today, don't even know that you can save Laurie? Every now and then she is mentioned and you will see a response saying "I didn't even know you could save her".
Do you know that relationship points matter only for 4 things in the game? Jake in prison, Amber to unlock the "I love you" option (which can cost 600$ to your broke MC), Brianna's continued romance after the talk show and Nico. So you better not missclick and hope that relationship points will unlock the romance down the line.
So yes, if you are playing it for the first time, keep the walkthrough around. And as a rule of thumb, always prioritize training no matter if you are a simp or not cause you can lock your game and kill no-name NPCs or you can lose some cool content. Also pick the horn over the eye because as of current update it's the lesser reward and you may miss content.