I feel your struggle .... It's much like the small boy on the beach throwing back small starfish one at a time in a sea of thousands after a storm. An elderly passer by commented as he looked on .. "there's thousands and thousands he said, you're not gonna make much difference" The young boy replied as he stooped down and cast another small starfish back into the sea " I sure made a difference for that one". The obvious comparison is what difference to the ones we save will they make? Our job is to plant seeds and nurture growth where we can. Our knowledge of the subject at hand is nothing if it cannot be conveyed to those who are lost. And there are none so lost as they that do not know they are lost. We must be wise interpreters, a sage of counsel, wordsmiths and orators that wield the sword of truth with dexterity and fine precision. We sow, another reaps. What we sow is then subject to germination, watered by word and Spirit. We are to trust in the power of truth. Is 55:11