"I wandered lonely as a cloud" is comparing a cloud directing to a persons feeling. This would be a simile.
The tone starts starts out lonely, like the author says, and turns to cheerful, as the author sees the daffodils.
The words "Fluttering" and "dancing" helped you determine that the author is happy, and the words "wandering" and "lonely" help you determine the beginning tone.
Hope this helps ya
just write a letter, example:
Good morning Sarah!
Yesterday I spent the whole day at ————- with ———-.
Then describe what y’all did and what you saw. Remember you make this up!