Question

what is the difference between I and my

Answer 1

Both 'I' and 'My' are personal pronouns. 'I' is Subjective case of the First Person. 'My' is  the Possessive case of the First Person.

Examples:

I am ready.

My bicycle is new. 

Answer 2

"I" is used to talk about yourself while "My" is used to talk about something that u own.