This might sound off the wall, but you could be suffering from age discrimination. Even though I was 27 when I started my landscape company I looked very young. It's hard to be taken seriously when customers hold stereotypes based on their perception of your age or appearance. You'll also end up getting under paid for your labor.
Yes I understand that. I think maybe when I get a big mower and a truck when i turn sixteen people will start to take me more seriously. But for now I still just want to get a solid customer base, then when I do turn sixteen I can grow even more and will be able to do more lawns because I will have a truck.