Mixture
Blending, Complication
You confused all of the ingredients to your cake by mixing them together into one weird mixture.
こうさく
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
色々な感情が交錯し、結論を出せずにいました。
Various emotions were mixed and we weren’t able to reach a conclusion.