Listen to my call

This is a call for help. See how you translated this in Psalms 5:1. AT: "Listen to me as I call to you now for help" (See: rc://en/ta/man/translate/figs-metonymy)

I have been brought very low

Possible meanings are 1) "I am very needy" and 2) "I am very weak." See how "we are very low" is translated in Psalms 78:8.