Keep applying! It's very normal for a job search to take months. And it's possible that one of the companies will reach out to you down the line with an interview offer.
It sounds like your resume could use some review. Consider reaching out to friends and experts. Good luck!
There's this meme that you get laid off on Friday, you send some emails on Monday, and you have a job by the end of the week. Not broadly true and certainly not at the moment.
But, yes, review resume and reach out. But also be prepared for this to be a multi-month process.
It sounds like your resume could use some review. Consider reaching out to friends and experts. Good luck!