Reflexive Pronouns

I am learning English

I am learning English by myself

He painted the house

He painted the house himself

But... There's always a but...

You can find even more that 2. At the end of this explanation you YOURSELF will know the differences.

To show the object of a verb is the same person or subject (1)

To emphasize that the indirect object is the same subject (2)

To emphasize who you are referring to (3)

To refer to the subject of a preposition without direct object. (4)