You know, I think it's an important recognition to have that you don't have to be anyone's everything. Like you don't have to be the one that says the Right Thing that saves their day, their week, their life. You don't have to be the one that they fall in love with and have their happily ever after with. You can just be their friend and keep them going til they find those people, and that's just as good, just as noble, and just as fulfilling.
Like maybe this is something particular to me and my particular set of anxieties and insecurities but there seems to be this feeling that if we're someone's friend we have to be able to do everything for them, and that's noble, but not usually possible. We're not anime wise-person characters that dispense the correct aphorism or unlock the protagonist's power at the pivotal moment, at least not for EVERYONE. We're people, with limitations.
I think it's less healthy to think of friendships as two people fixing each other and more as like, lock and key. We've all got a particular set of skills, experiences, strengths, etc. that can help unlock certain aspects of character growth in our friends, but not all of them, and that's OK. Just the contribution we make is meaningful. And downplaying it as being not enough is... kind of insulting to the growth we DO incite in others.
I have no idea if any of this is coherent, I'm just Feeling Thoughts and Thinking Emotions right now and wanted to babble a little bit to get it all out.