Hp bars/ hp Text It does not seem to be updating and can’t find out why. Could someone maybe take a look and tell me how dumb I am? 
i see two possible issues.
First in your take damage function you are setting the variables to a constant 0.1. usually you would have a variable then subtract the damage then set the variable to the new value (health - damage = (new health value)).
the second possible issue is that you’ve bound your progress bar to a character reference but your pictures don’t show how you set that variable, so not sure if you’ve set it or not.