Can I apply for a second-year ED visa without canceling my current visa first?

Hi, my ED visa will expire this month. I will be leaving Thailand for two weeks and then returning to apply for a second-year ED visa after arriving Thailand.

My school in Chiang Mai told me that I need to cancel my visa at the Chiang Mai immigration office. However, due to personal reasons, I am currently in Hua Hin and may not be able to travel all the way to Chiang Mai because of the cost and time involved.

I understand that it’s safer to follow the school’s instructions to avoid any risks, but I just wanted to see if there are any other possibilities. Has anyone applied for a second-year ED visa without canceling the first one, and did you have any issues?

Thank you !