Why do I keep doing this?? :'(

So, a couple weeks ago, my Uncle called me to ask if I could help him mow some lawns for his business, because the weather was so nice and all the lawns started growing early, and he has no help. So stupid me, I said yes, all because I need money. I forgot one thing though. He treats me like I am 12 years old and to stupid to understand what he is telling me. He has to explain everything to me. Has to walk me through a safety talk for a lawn mower! And he whistles at me like I am a dog. Seems like every 5 minutes, he is whistling at me to tell me to do something else. And I can't just ignore it, because he doesn't stop! And then when he is telling me something, and I go "Yup", he goes "truth", and then explains it! It's like either he doesn't know what he is saying, or he thinks that every word that comes out of my mouth is sarcasm! It pisses me off! I can't stand it. I need to find a job asap so I don't have to deal with him. I mean, I could handle the mowing of the lawns if he wasn't there and I could just put in my headphones and just go, but no, he has to explain everything to me. And then to top it all off, screwed up another relationship opportunity, but nobody wants to hear about my relationship problems. Nobody wants to hear anything I have to say. I don't even know why I wrote this, nobody even cares. I doubt anyone will read this anyways. I don't know why I even bother... :'(