I think it can be hard to think about "loving yourself" as a change you have to make in your feelings, because it's hard to change how you feel about something by thinking "okay, I need to feel differently now!"
But when I think about love, I think about how it isn't just a feeling you have, but a way that you treat someone; maybe it would be helpful to think about "loving yourself" as "treating yourself with love." Are there ways you feel like you could show yourself some extra love right now? I don't think you have to know everything about yourself (and you're right that you're at a point in your life where who you are is likely to be a big and complicated topic) to focus on being kind and loving to yourself.
I don't know what taking those steps to love yourself might look like for you, but for me that includes things like trying to cut down on negative self-talk, celebrating and maintaining my close friendships, and allowing myself to enjoy and feel pride in things I'm good at doing.