How to be matured person?

my mother telling me to grow up
and be matured, i understand that.
but its just so hard to grow up ive been finding how to be matured for 3yrs
its not easy for me to control my own emotions
i feel so disapointed at myself.
i keep trying doing it.
have my own schedule
learn something new
be positive everytime waking up
cleaning room
eat on time
and i still failed to follow those
once i wake up late and the whole day for me is ruined.
how i will grow out of this?
im tired and calling me so immature