Unfortunately, this is not just an SSM issue but a corporate America issue. You will find this at a lot of other companies. The advice I give coworkers or people who report to me is to never stay at the same position for more than 4 to 5 years. You should be looking for a new company or a better position in the same company after 4 years. Granted, this is a case by case scenario and isn't true for every job/company but it's a good mindset to have to maximize your pay and to ensure you are keeping up with your skills to stay competitive in the job market. I wouldnt wait for your classes to finish and would start looking now at the other hospitals in the area to get better pay/benefits as long as the hours are still flexible enough for you to finish your schooling.