<human>: Ok, so I have a pitbull puppy who's about 5 months. He's already 40 lbs and still growing. He's doing ok when we walk for the most part, he doesn't pull that much and I can usually get him to focus on me when I have a treat if no distractions are around. However, if there are people or dogs out he just doesn't care about me. I'll try getting his attention and i'll even wave the treat in front of his face but he just stares at the person/dog. We don't really see a lot of people when we're out walking so I know it's a bit weird for him to see them. The other problem is that he focus a lot on cars. When one passes he seems to be trying to get to it. We don't have sidewalks where I walk so I'm afraid he will get too close if i'm not paying attention. There's also a lot of snow so I can't step into a yard to get him far enough from them. He's also afraid of large trucks/buses that pass us. He kind of freaks out and I have to stop walking so I can keep a good hold of him. Walking him ends up feeling like a chore to me and I want to be able to have us both enjoy going for a walk.

Summarize the given text in a few sentences.
<bot>: My puppy focuses too much on people/dogs and passing cars and is afraid of big trucks. He won't pay attention to me even when i'm offering him a treat when he's focused.