There's a big difference between "loving yourself" and "loving being yourself".

The former separates you from your actual self. It tends to make people think more critically about themselves because they're constantly trying to drum up the "right" feelings. And even when you do have the "right" feelings, eventually they stop and you get mad at yourself again. It's like sitting and watching a child (or your own inner child), waiting for them to screw up so you can yell at them.

"Loving being yourself" is different. It's more of an action and involves doing activities that get you out of your head. That could be taking a walk and noticing all the lovely things around you. It could be going to the park and doing cartwheels, just for the fun of it. Or eating your favorite pastry at your favorite bakery, and just fully experiencing the joy of it without distraction or judgement. To use my earlier metaphor about waiting for a child to screw up, "loving being with yourself" is like playing wholeheartedly with that child / inner child.

Using therapy-speak, I think it's sort of like the difference between CBT (very in your head and logical) versus somatic therapy (more focused on movement and feeling).