Well said. It takes many years to learn this stuff. I would be willing to bet that everyone on this forum has at one time ,bought the wrong part, broken a part, been stumped by a problem, and wanted to scrap the whole car.
Don't let it frustrate you. Break your problems down into small parts, and methodically solve each part of the bigger problem.
If it were my car, I would get it fired up let idle up to temperature and see if it overheats, or starts pushing antifreeze out of the exhaust or any other horrible things that might need addressed before you tear into the carburetor.
