Can I snap at my parents because they won't get off my back
What are they trying to get you to do?
They want me to get out of bed and do something with my life.
Having your parents nag you can be annoying, but they are trying to help you. Responding by snapping back won't help either of you, and they're not wrong - you should do something meaningful with your life. You will feel better if you have a purpose that occupies your time.
What? I can't believe you are suggesting I do something productive with my life.
You know slacking off can really hinder your adult life. The sooner you get started and take initiative the better off you will be. There are a lot of adults that regret they wasted so much time.