What can I do about my sex addiction?

I think I might have a sex addiction and it is affecting my job. Why could that be and sometimes I can make impulsive decisions. Could I have a mental illness that causes this? I might have Borderline Personality Disorder. Can Borderline Personality Disorder cause sex addiction that causes me to make impulsive decisions that is affecting my job? Or am I just a normal girl that likes sex and I should ignore this?
What can I do about my sex addiction?
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