to make it simple, to conjugate a verb: you have to first learn the basics.
Yo (or any verb ending in o) means me
Tú (or any verb ending in es) means you
Él/Ella/Ud. (or any verb ending in e)
Ellos/Ellas/Uds. (or any verb ending in en/an)
Nostros (or any verb ending in emos/amos)