This is a very impressive poem, Ana, a poem that is mature beyond your brief years. It is quite well written with excellent phrasing and imagery in every verse.
I was wondering if at the end of the second verse, the final word in it's last line was meant to be 'shield' instead of 'shielf, ' which is not an English word that I know of.
That aside, this is a clearly written poem, obviously one quite well thought out, and for a person of your tender age, a very impressive write. You are blessed with a great talent for expression. Carl.