Hello there!
Rhyme schemes are when two words rhyme in a poem. In the 8 lines you put the rhyme scheme is AABBCCDD, for the first 2 lines gold and hold rhyme,which makes up the AA part of the rhyme scheme, and the 3rd and 4th lines rhyme (flower and hour) which makes up the BB part of the rhyme scheme, leaf and grief rhyme, which makes up the CC part of the rhyme scheme, and day and stay rhyme, which makes up the DD part of the rhyme scheme, and so on so forth.