Advice for getting a CS internship?

I'm a junior in college and can't seem to get an internship, I even had an internship last year and cannot find one now.

I didn't want to go back to the same place as last year because I want a more diverse range of experience. The company was only about 10 people large so I did a lot but was already getting bored toward the end.

I've been spending entire days writing cover letters for companies. Everyone I've had look over my resume and cover letter have said that it's really great but I can't even get an interview.

P.s. I'm in the Cleveland area and started looking in November

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