When I click the rook after I click the king that means I want to move the rook, not castle

I hope they add a feature to disable castling by clicking the rook

if you click the king and then the rook, castling will occur.

How do I Castle? - Chess.com Member Support and FAQs

Yeah but I wish they could change that since if I click my rook I most likely would like to move my rook

then don't click the king first.

Yeah but sometimes you want to castle but then you think that moving your rook would be a better move

you un click the king then move the rook

I know that you can do that it's just during a bullet game or something, you try to move fast so you might forget

I can't help you with that. I have provided an answer to your question. Happy chessing!

You can also go to Settings-All Setting-Board and Pieces, then scroll down to Move Method and change it to "Drag Pieces" so you don't have to worry about misclicks. In this, you'll castle by dragging the King two squares towards the Rook you want to castle with.

Drag Pieces also helps eliminate misclicks if you don't normally click to move pieces and you are worried about clicking somewhere on the board accidentally moving.

Place hands on King and Rook, then move either or castle. Simples!