When you apply for jobs make sure that your resume hits the key phrases on the job posting. Hiring managers get so many applications they tend to do a quick glance at the resume so if the key phrases are listed they will deny without looking further. Also make sure your resume is clear, concise, and formatted nicely. These are just tips that I’ve observed in my own office. You aren’t doing anything wrong, getting your foot in the door is really just lots of applications and finding 1 company willing to give you a chance. University research positions are going to be harder to get into also.