Gamemaker Day30

Today I havent learned anything new, what i did: I was trying to figure out how to make a health bar in gamemaker , and whenever they take damage the bar will go down by a bit. I have been watching the video custom healthbar, but I dont quite get the tutorial. I might have to redo all the code for lives in my shooting game, so that I can make a healthbar instead of a text number. I only added sprites on my game right now and it doesnt do anything yet.

The next day I'm going figure out how to make the healthbar work.