Help please - Junior at UC Berkeley studying economics

I'm a junior at UC Berkeley studying economics. ~3.5, 1500 SAT. No relevant work experience (for i-banking or trading). I applied for both banking and S&T summer analyst positions at around 20+ firms and I didn't get a single interview. Now I don't know what to do. Most of the opportunities on the site they post jobs to have passed, and I'm afraid I'll be left with an even more hopeless position next year if I don't get anything now. Where should I be looking? Is it even reasonable to be able to get a summer internship with my stats?

Any help is appreciated. Thanks