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[ஒழுக்கின்மை]

set a variable equal to the string value of damage, and then use that in the draw function, rather than using string every step. how you specifically code it and what you name the variables is up to you, and doesn't really matter; all that matters is that you don't use string() every step, just during creation

using damage directly in your example code will not work, because damage was never assigned a value in that object. you can't use a variable in one object and expect it to refer to a variable in another object of the same name. you can call it either damage or str_damage, it doesn't matter (str_ is just a marking at the start of a variable that's used to indicate that it's a string, it's part of the name and doesn't do anything). what matters is to be consistent -- use either str_damage or damage, but don't set one and then try to use the other

[Jarkko Vallius]

I use the brackets to make it easier for me to read the code. I have yet to obtain a coder's eyes, I'm still a beginner >.>

You are doing it right. The brackets and additional lines are cheap vs. hunting down bugs caused by not using them. So, always use brackets, no matter what.