I was in the same boat. Nearly 10 years experience at the same company that hired me after university. My first phone interview had me write a linked list and I

I was in the same boat. Nearly 10 years experience at the same company that hired me after university. My first phone interview had me write a linked list and I froze. I had even practiced writing linked lists that week. The interviewer probably thought I lied about my resume. I spent 4 months doing leetcode problems and reading books before I started doing interviews again. I would interview at places like Facebook that I had no interest in working at but I needed the experience. 7 months after I started I finally got an offer. I don't want to go through that again but I agree that you probably need to do interviews every year inorder to not completely lose that skill.