Secure a certificate and keep it. This will add to your credentials to your next job or will help you get the raise you richly deserved. Conflicts at work can be stressful and counter-productive for everyone involved. Learn to confront the person with whom you are struggling and resolve the situation. If possible, avoid regularly going out for long lunches with colleagues or clients.
Large meals make for unproductive afternoons.
If you're planning to resign from your job. Keep in mind that you may have to get a recommendation from your supervisor, so don't burn bridges. Regardless of your reasons for leaving a job, you can do so in a professional manner. Prioritize what you need to accomplish. Locate and isolate this valuable 20 percent, then focus your efforts on the tasks that promise the greatest rewards.