I'd rather not work so hard if I'm just going to end up having a stroke and lose everything that I have accomplished in my life.
この場合、次のような言い方ができますよ。
ーI'd rather not work so hard if I'm just going to end up having a stroke and lose everything that I have accomplished in my life.
「脳梗塞を起こして人生で成し遂げてきたこと全てを失ってしまうくらいなら、頑張らない方がいい」
to have a stroke「脳梗塞を起こす」
to accomplish「成し遂げる」
ご参考まで！
カナダ 
