u/Engipeer3

Hi so once I get done with my current semester I am going to get started on my first ever project. It's an idea I've had for a while because of a few reasons really but that's not important because I've been struck with such a massive wave of motivation and inspiration that I can't really ignore, I've tried. The problem that I have right now is that I have a lot of characters and interesting ideas for all of them that kind of all converge together to create this mess that I am thinking of. All of them will be spread out throughout much of the story so I was wondering how you would make it clear that one chapter is told from one person's POV or if it is ok to tell some chapters from first person and others from third or if that is some kind of writing sin. Sorry for the simple question but I have literally never done anything like this before.