I don’t like my job now. Not sure if I should keep trying

This is the first official job I’ve ever had and it takes a lot of learning and skills that after a month I don’t see to be getting, so I don’t know if I should keep trying. What I have to do is go door to door to try and make the owner change their electricity company to the one I come with. I started pretty good but the last 2 weeks I haven’t been signing anything, so I’m not getting paid. The reason I’ve kept trying is because my boss gets to sign many contracts a day so I thought I would be able to learn how. Despite this, each day that passes I feel like I’m not learning anything because I don’t really know what I’m doing wrong, since I go by myself and have no one to tell me what I’m doing wrong. My boss has been telling me that is because i don’t follow the steps they teach us, which may be right, but I don’t like acting like that because of my personality, it makes me feel drained. I worry that I might be giving up too soon. Update: I’ve just quit and I feel weird, but the moment I said I felt I wasn’t cut out for the job my boss gave me examples of things he’s done while I was with him acting like I did all those things, and I realized he couldn’t name one thing I’ve done that made him think me being there was worth it. I’m glad that I don’t have to go trough this any more, but I can’t help but feel defeated, since they make you feel like anyone can achieve it. It was very challenging, and I feel like I wasn’t strong enough to face it.