I'm currently working on a prototype for a platformer game and I can't figure out how to make a solid platform that you can stand on. I'm somewhat new to scratch and the code is a mess of code taken from other posts and original code. If you wanna check the code, the project is the only one on my profile. Please help me get past this roadblock so I can continue working on this prototype. Thanks!

I should add that I've see a post asking the same question but the answers didn't work for me. Which is why I asked in hopes of getting a working solution.

watch griffpatch,s tutoirl https://www.youtube.com/watch?v=D16hTnDGweo&list=PLy4zsTUHwGJIATydhFeZa5pspLZR7yE__