I am doing my first extraction it is a A/B and on the first step accidentally boiled all the water out of a pot because of the element being too high, some of the RB on the bottom of the pot got burned. Have I ruined everything or should i just add more water and continue?

You won't know unless you try. I would imagine it depends how much you burned / how badly burned it is, but instinct tells me it is salvageable