Stress comes from worrying about uncertainty. Are you worried about your own future?
One way to reduce stress is to accept the situation. For example, you accept that you are unable to save for a period of time, but hope (and work towards) making up later.
Alternatively, you can try increasing your income, or reducing your expenses. Is either of these, or both, possible? I am sure your parents would like to help if they knew they were contributing to your stress.