Yes, it doesn't really tutor you into it.
Important to understand is that the game is time based, so people show up at certain time of day at certain places.
The schedule is visible in the phone for each person and you can also advance the time there. Needs some getting used to and understanding of the concept, but gives you a lot of freedom on how you want to progress and which storyline you want to pursue.
When you just start, use the weekend to explore a bit and get used to the mechanics. School then starts on Monday and this will first guide you into more content.