I'm just disappointed. 我只是失望。
I was looking forward to it. 我期待它。
It's a shame that we couldn't go. 我们不能去是一个遗憾。
It's not what I expected. 那不是我所期望的。
Words and phrases
disappointed失望的, expecting期望, shame令人惋惜的事, paycheck薪水, mad发怒的