英语翻译我很失望,我选择离开,不留下什么,没有什么可留恋的.

I am so dissappointed so I choose to leave.
There's nothing to leave and nobody to miss.

I'm very sad,I'll leave you,left nothing,I nothing worth be remembered.

i'm very disappointed that i choose to leave.
i'm not going to/won't leave anything behind because there is nothing worth remembering.

I'm depressed,I'd rather leave without anything,without memomry.

I'm so frustrated that I have to choose to quit.I'm going clear away as there's really nothing missable.
如果他/她有对你很冷漠、粗暴、鄙夷等等不好行为和态度让你失望,用frustrated
如果他/她自己做了什么错事,没能达到你的期望,用disappointed

I'm very disappointed. I choose to leave without leaving anything. There is nothing worthing missing.