Not all spells need the addition of symbols, stones, candles, herbs, etc. This particular spell seems like it would be done best if repeated daily until such a wish was obtained. Though it would only work if the wish was realistic. Wishing for wings, or immortality would not be plausible as you cannot grow wings or stop your age with magick. Or at all, for that matter.
Using this as a repeated chant with actions in your daily life to encourage the wish could help to create the desired effect, though.
Good luck in your future endeavors.