How often should I check for breast cancer?

Dear Doctor, I am 24 years old and have never checked myself for breast cancer. My mother always reminds me to even though we do not have any history of the disease in our family. Is it easier to go for a screening test instead? I have felt my own breasts but I can’t tell if there is anything wrong with them. How many times should I go for this checkup?
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Dr. Rachna Pande