This 2022 brings some new features to Instagram, one of them is "See your liked post again" which shifted in your profile. So, if you have an iPhone and you wanted to see posts that you have liked before then don't worry and come with me I will tell you some easy steps to do it.
Go to your Instagram profile
Click on "Hamburger"
Select "Your activity"
Then "Interactions"
The final step is "Likes"
Learn more here: https://getassist.net/how-to-see-liked-posts-on-instagram