5k a month is peanuts. Policemen in SanFrancisco start at 6, fireman a little more.
I was driving a cab in SanFrancisco making a true $40 k a year, taking home more than my fireman friends who grossed 77k.
Problem with a bank account is interest and accountability. You don't want to pay either.
As an almost 64 year old, my advice is to live your life while you can, don't wait for tomorrow, have something for your later stages in life, but you are young only ONE time.