Greetings @amara!
I’m with everyone else on this one- your emotional state can have a huge effect on your casting. This can enhance your spellwork, but it can also cause problems too, depending on whether or not your emotions overpower your intention.
There was a great discussion about Emotions in Magick a while back- if it’s something you are interested in learning more about, I’d recommend checking it out! 
I hope your spell went well and that you are feeling better now- blessed be! 