Two short lines, and they hold a whole trap. The speaker wants to ask for help, but the thing that should make asking easier, the need itself, is tangled up with a fear: that asking will turn them into a burden. So the question "how am I supposed to ask?" isn't really about wording or technique. It's about feeling like your needs are too heavy for other people to carry.
The mood is quiet, tired, and a little stuck. The question in the first line sounds almost rhetorical, as if the speaker already suspects there's no good answer. The word "just" in the second line stands out: they fear they'll *just* be a burden, as though that would be all they are to anyone. That makes the worry feel bigger than a single request. It hints at low self-worth, or at least a belief that being needy cancels out being valued. The poem's brevity mirrors the silence it describes: the speaker says only this much, and stops.