You can have your parents (if they own the line) call the company and ask them to block the number. Or, they can change your number. I'm not sure about texts, but some phones give you the option of sending certain people to voicemail. Either way, you'd have to explain the situation to your parents lol. Good luck!
Attention: NOTHING on this site may be reproduced in any fashion whatsoever without explicit consent (in writing) of the owner of said material, unless otherwise stated on the page where the content originated. Search engines are free to index and cache our content. Users who post their account names or personal information in their questions have no expectation of privacy beyond that point for anything they disclose. Questions are otherwise considered anonymous to the general public.