Getting your first nursing job can take months and hundreds of applications. 36 applications and 3 weeks is nothing.
You may think you're at an advantage being in a big city, but it also means that you're competing for jobs with thousands of other nursing school
graduates- many of whom will have previous healthcare experience. It's actually easier to find a job in more rural areas.
You probably don't want to apply for tech positions. Many states/facilities do not allow someone who is licensed as an RN/LPN to work as a tech due to liability. You are held to the standard of your license, but while employed as a tech your scope of practice only lets you do certain things. So if there were a patient emergency while you were a tech, and you didn't implement certain interventions within the LPN's scope of practice, you could be sued. Big risk for the hospital.
Since you have no previous healthcare experience, you'll likely have to broaden your search beyond hospitals. Apply to skilled rehab facilities and long term care. You might not get your dream job right off the bat, but you have to get experience somewhere and then you can move into the hospital setting.
I hope you are not one of those nursing student who were told that, once you graduated, you'd be able to work wherever you want and you would have tons of job offers. If so, you were sorely misled. The job market is very tough for new nurses- especially those without any previous health care experience. Make sure your resume and cover letter are as good as you can make them and keep applying. If the HR message says to apply online, then calling or going in with do you know good. You'll get to the hospital, ask to give them your resume, and be asked to turn right around and send it in online. That's the policy beucase, otherwise, HR would have hundreds of people calling/visiting every day.