Creating a custom story, but need help!

[Leeeyam]

Hello, I was looking for help, I had a great idea for a custom story, I have been on it for about a week and a half, but I'm really new to it, I only know how to place the stuff on the floor, I was wondering if anyone had a guide, I seen people talking about coding an such, I couldnt find any advanced guides on You Tube for special effects, so if you had a guide or knew a guide or could even give me some tips it would be GREATLY appreciated! thanks!