I'm wondering if you're being too choosy about the jobs you're applying for? If you really think you'll blow your chances at job A which you really want, apply

I'm wondering if you're being too choosy about the jobs you're applying for? If you really think you'll blow your chances at job A which you really want, apply for job B. The experience of working job B might give you a more precise insight into what you want/don't want in a software job.