The key to achieving your workout goals—and better pain relief—may be simpler than you think. Just believe in yourself, say researchers, who published a study on the subject in Arthritis Care & Research. To boost your confidence, set realistic exercise goals if you have rheumatoid arthritis (RA). “The clearer you can be about your objectives, the better chance you’ll have of reaching them,” says Eric Matteson, MD, chief of rheumatology at the Mayo Clinic in Rochester, MN. Here, six ways to set yourself up for success.