paint bucket tool either does not exist or is broken

so i have a shape i drew with the brush tool and its closed has no gaps, and i want to fill it with colour, so i go to the tool search and cant find regular fill or paint bucket, all i can find is live paint, i try it and quickly realise it works differently to fill or bucket in photoshop. i search up how to use the live paint tool and none of the tutorials worked for me so i go to this site and try to use fixes from other people that had similier issues, it still would not work. if anyone knows why this is happening or how to fix it please tell me.                                                                                       also i have an assignment where ill have to create a penguin in illustrator coming up soon and i dont wanna hand coulour it with the brush tool so all help is very much apreciated