I know what you mean...my first attempt at querying a novel went, almost. It got attention from most of the agents I queried, i got personal rejections...etc. when it came down to it, I wasn't really discouraged, I was excited. It's hard to explain to people but those failures were successful failures. I did it. I wrote a book, I got people to read it and like it (even if they didn't want to take it on), and I committed myself to the failure. It was failure, technically, but it wasn't. It was a success. And now I can write a second novel that blows that one out of the water. At some point, I'm confident, I'll break through the barrier between "good" and "great".
Plus, I'm assuming you're young, which means...you've got time and life as an advantage. I didn't think I could write until the dean of my English department begged me to major in creative whatever (I couldn't, I needed a job! Lol) but that was....oh...eight years, one husband and three kids ago. I've been writing ever since and feel like just now I'm getting closer to what is the best I can do (of course, the best I can do keeps moving...) but all that life and practice made me a better writer. Personally, I'd rather write a few amazing books than a bunch of good books, and I'm okay with waiting and working to that. Time is your friend, and it goes fast.