If you used chlorine then you might neutralise it with H2O2. In my country you get both the bleach and the H2O2 at pharmacies along with information on how to use them. What they gave us was same amount H2O2 as chlorine... but there might be different concentrations available. Good luck!

Do u know bout Mel Robbins? Watch/read e.g. her Ted about motivation. Her 5 Second Rule saved my life! (When u feel the urge to do some 'uncomfortable' task - you have 5 seconds to move physically, otherwise your brain starts talking u out of it!)