Yeah, the ending of it is a little arrogant in a way. I would also be careful with using that as well. But the rest of the poem seems to be the stereotypes we think of good people, who not much of us are in this context.

You're giving yourself some good chances for play-on-words with this. The first stanza, especially, where you can play with the word "one." Remember that poetry is very big on the usage of words in their many facets, so have some fun with all that the words have to offer you. I would also be careful with the ending, because stereotypically a person who says "I am a good person" is usually either not or wanting attention (not saying you are, but this is just what people tend to think- a forewarning.) Think of a humble-sounding way to present that you think you are a good person. Don't get me wrong, it isn't bad to think you're a good person, but presentation is half of the battle to convince anyone else you are. Keep going with this one! It's worth another draft :)