I was dx'd with rheumatoid arthritis in summer of 1994. Managed with 3 different meds until Dec of 2004 & had to start methotrexate 5-6 pills once weekly plus 1mg of folic acid daily. Depending on lab results, which for me are done every 8-12wks. Biggest complaint with methothrxate is hair loss but have heard lots of people don't have this issue.
Methotrexate has really helped me mostly with hands & feet but overall too.
Doing even 20 min a day of non-jarring exercise helps when able. I have been astounded by the benefits of yoga, just basic "soft" stretching poses. Also on other days a quick 20 min walk helps & gives you some fresh air.
Otherwise learn to listen to your body. This dx isn't the end of the world.

Best wishes, PM me anytime.