我难过得想哭。 This is more of a native way to say,

我很难过，我想哭。

I'm not sure if u are sad.But pray for u and wish u lead an abundant and happy life.Life will go on.Followings are my answer. 我不开心，好想哭。 or 我很难过，好想哭。 Commonly,when people are sad,they prefer to speak less,i imagined my sad thing,and i will express"i am sad and i want to cry"as "我很难过，好想哭"in Chinese.

我傷心到想哭

我很悲伤/难过，想哭。