Matthew 21:22 If you believe, you will receive whatever you ask for in prayer.
Right this second, somebody somewhere in America (or in the rest of the world) is crying out to God for help and God intends to use you as the instrument that answers that prayer. Will you let Him?
I believe that, as Christians, we genuinely want to help hurting people but oftentimes we're not sure where to begin. But, if we are truly sincere about wanting to help and we honestly pray for opportunities to do so, The Lord will provide them.
I think many times we Christians are timid about wholeheartedly praying to help others because we know that, in helping others, we can be inconvenienced ourselves. If a friend (or stranger) is praying for money, that is money we have to dish out of our own pockets-which could be our morning coffee money, Christmas money or vacation money. Or if God leads us to someone lonely, we know we'll have to sacrifice a chunk of our time to keep them company. Or, suppose God is calling us to forgive someone. This might cause us to do some excruciatingly painful soulsearching. Are we ready-and willing-to do that?
I think the key to being a vessel for answering prayer is sincerity. In our busy lives, do we really want to help others in need? If so, I believe if we sincerely pray for opportunities to help Our God will provide them.