Tzitzis 24/7

I started to wear my tallis katon 24/7 since having a difficult time with covid. Now that crises is less, can I revert to wearing tallis katan by day only? Do I need to be matir neder? I only conditioned to wear talis katton 24/7 because of covid fear.

You need to do hataras nedarim with a Rabbi.

All the best

Rabbi Shay Tahan