*Adigo=70 : the tempo of the piece which is slow, the 70 is the metronomic mark so that there is a leeway for the performer.
*The C looking thing: is the time signature and it a symbol used in place of the regular time signature which is used for 4/4 time.
* The black bar: are rest signs, in the treble clef is the half rest, the bass clef is the whole rest.
* p : it's a dynamic marking which means "piano" for playing soft
By the way, don't you have a piano teacher to help you?
best wishes,
go12_3