Новички 2 - Возвратные местоимения

used when the subject and object of the sentence are the same, indicating that the action is done to oneself

себя

used when a person who is addressed is both the one who does an action and the one who receives the action

сам, сама

used when both the subject and object of the sentence or clause refer to a male human or animal who is being talked about

он сам, себя

used when a female human or animal is both the one who does an action and the one who is affected by the action

она сама, себя

used when an animal or object is both the thing that does an action and the thing that the action is done to

само, сама

used when the speaker and one or more other people are both the ones who do an action and the ones who are affected by it

сами

used when a group of people who are being addressed are both the ones who do an action and the ones that are affected by it

себя, вашими

used when a group of people or animals are both the ones who do an action and the ones who are affected by it

себя