I’m a little bit busy with schoolwork, but (as Pika_Pokemon suggested) there are a lot of community-made guides available for you to reference. Some of the ones related to your question:
How to make a voting system
How to make an Emergency Meeting
How to make killing for Among Us
How to make a task bar / how to make a wire task
If you have any questions or problems with making specific things, feel free to ask - I’ll try and help whenever I’m able to :]