I want to change the health and inventory bar, but I don't know how. Help me please.
For Health Bar you need to actually remove the default gui and place your own health gui.
As for inventory bar im not 100% sure if u can actually remove it. Maybe you would need to also design your own gui and tools system so that players dont actually pick up tools in the usual way (so it doesnt activate hte toolbar)
Someone else help me on the second part pls.
Remove the health gui from Player Gui in Players>Player Gui>HealthBar Then put the health bar in Starter Gui. Change the health bar.