Health system

How do you make a health counter that starts at 3 the first level and and when you get hit, it goes down one and stays that way to the next levels or if you dont get hit to be able to register when you get hit later? I'm sorry for all of these basic questions (kinda basic).

MERM123

Use a global variable.

Umm... How do you do that? Sorry, I'm pretty dumb.

In the project bar, right click global variables to add the variable, then use conditions and actions to check and set it. If that doesn't make sense, I recommend going through some tutorials.