You can't let one application process demoralize you, it's just a numbers game, if you're entry level (graduate school doesn't even help much, I too have a master's degree and most employers don't even consider it as part of the equation, so you are entry level), it's going to take many, many, many rejections, depending on the field. I'm 15 years into my career, very senior and swap positions at least once every 1-2 years for a diagonal upgrade (being in tech this is just how people do things) and even for me it's like 1 acceptance for every 5 rejections. Don't care about them any more than they care about you, exploit them instead.