I have to push down real hard on the brakes; and the car will take time to stop

What is your question?

my 91 ford a year ago my daughter was using it she moved and left the car in drive way; it sat thru winter and when I wanted to move it takes lots of pressure to the brakes to stop the car (hardly any peddle movement) I suspect the brake booster;? should I get it repaired ? buy used from junk yard ? *I no you will say you don't no what you are getting from junk yard* but the car was not junked due to brake booster I am sure: or buy a refurbished from a parts place?