A while ago someone posted what is worship. Basically answering your question. If i can find it I will post it, but basically it said any service, even if it is your job to run the sound or the projector or the camera is your act of worship. Worship doesn't have to be singing, listening to a sermon, ect... it could be serving as an usher, greeter, prayer partner, ect..... remember God sees our heart, he is not looking at what we do. If serving is in your heart, then you are worshiping in your own way.
I have been in your position as the only person running everything, so I can understand how you feel. And I wondered the same thing till I came across the list of worship.
Keep the faith, pray and God will provide the people to help you.