You know how to use reflexive pronouns like myself, yourself or themselves

Explanation to learn more about the grammar explanation of reflexive pronouns are words like myself, yourself, himself, herself, itself, ourselves, yourselves and themselves. They refer back to a person or thing.
We often use reflexive pronouns when the subject and the object of a verb are the same.
Examples that might be explain more'
1- I cut myself when I was making dinner last night.
2- I hope you enjoy yourselves at the party tonight!
3- My phone isn't working properly. It turns itself off for no reason.
4- We need to believe in ourselves more.

A- (Adding emphasis)
Rule number 1 of Adding emphasis
(We can add a reflexive pronoun for emphasis when it's unusual or different)
examples.
1-He wants to pass his driving test so that he can drive himself to work.
2- She broke her arm, so she couldn't wash herself very easily.

Rule number 2 Off Adding emphasis
(We can use reflexive pronouns to emphasise that someone does it personally, not anybody else)
examples.
1-The door was definitely locked. I locked it myself.
2-Are you redecorating your flat yourselves?

Rule number 3 off Adding emphasis
( We can also use a reflexive pronoun together with the noun it refers to in order to emphasise it)
examples.
1-We talked to the manager herself, and she agreed to give us our money back.
2-Parents themselves need to take more responsibility for their children's learning.

B- (By + reflexive pronoun)

Rule number 1 off By + reflexive pronoun.
(We can use by + reflexive pronoun to mean alone)
examples.
1-He usually goes on holiday by himself.
2- Do you enjoy being by yourself?

C (Reciprocal pronouns)
Notice the difference between plural reflexive pronouns and reciprocal pronouns (each other, one another).
Examples.
1- They're buying themselves a new television.
2- They're buying each other small gifts.
3- We looked at ourselves in the mirror.
4- We looked at each other in surprise.
With reciprocal pronouns (e.g. each other), each person does the action to the other person/people but not to themselves.