We know what you have started is a really big job BUT every little thing you do gets a little closer to the end.I had a friend who was a dairy farmer that worked several hundred acres. He told me his plan was to do something on his frame off 55 every day,no matter how small a job.There is also a saying of eating an elephant ONE bite at a time soon there is no elephant left! You keep at it no matter how bad you think it is. Do not be afraid to ask questions about measurements or just how to go about some project.