will i qualify for ss disability for osteoarthritis of the knee that is extremely painful, and I have also been battling severe depression for a long

Social security disability is awarded to those who can not engage in any meaningful work.  Although you may have a very painful condition in your knee, it is not liekly that your condition prevents you from working at all, it just may mean you cannot do the work that you want to do, or that there needs to be some accomodation in how you do that work.