On average, how long does it take to get called for an interview after applying?

I have put several applications out in the past few weeks. I have applied for a few different positions with different companies and I am starting to get anxious! My hours are getting drastically reduced and I am making minimum wage currently because this was the only thing available at the time. I am looking to transition into a higher paying gig but am nervous my resume isn't good enough or I don't have enough experience. Should I just relax? And how long have you guys waited to hear anything back about a potential interview?

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