Accept the rest. Most situations can be viewed from several different angles. Most of the time, it is possible to put a positive spin on a stressful situation. Take a winning attitude. Approach a situation as a challenge, not a crisis - Stop worrying and start problem solving.
Problem solving is the proactive approach to finding solutions to controllable problems.
Give yourself credit - Set realistic daily goals and then rejoice in what you accomplish each day. Don't dwell on what you didn't get done. Perfectionism is not always the answer - Most people want to do a good job, but do not waste time trying to be perfect. If you try to be perfect and things do not work out, it will discourage and stress you even more. Allow for human error.