How often should I wear my retainer now?

I had braces for a year and half, and I got them off about 2 years ago. I wore it 24/7 for 3 months like my orthodontist told me to, and then reduced it to every night for about a year. Now I've been kind of relaxed with wearing it (maybe once every couple weeks) and my teeth haven't shifted much, but they don't fit into the retainer perfectly. How often should I wear my retainer now?

No doctor answers yet