I believe everyone views themselves differently, depending on what is going on at that particular time, and where the perception is coming from.

Part of my perception of Am I Lovable, Am I worthy is yes for reasons that are about the adult me; part of my perception is No One Wants Me, There is Something Very Wrong With Me that I think come from the core, from internalized perceptions that came from feelings (if that makes sense) and that was about not feeling loved when I had very few words for it, having needs that couldn't be expressed but also weren't met.

I think it's important to explore, so we can find more words and layers of it, and so we can tolerate having opposing feelings about something.