What does Lamentations 1:21 mean?

People have heard how I groan, but nobody is here to comfort me. All my enemies have heard about the trouble I’m in, and they’re happy about it. But you’ve promised the day will come when you’ll deal with them the same way you’ve dealt with me. Lamentations 1:21 - Modern Text Bible

(The speaker feels completely alone and abandoned, with no one to help. Enemies are glad about her suffering, but she trusts that God will eventually bring justice to them as well.)