Sounds like you’ve got some stuff figured out and you should be proud of that! It sucks when friends drift apart, maybe you could initiate some hangouts if you haven’t tried that already. Not just ‘we should hang out some time’ but something like ‘hey want to to get together this weekend and see a movie’.
As for feeling lost and bored, I can relate. I still don’t really know how to handle that, I try to lose myself in a hobby, or deep dive into something that interests me. Doesn’t make it stop but it helps forget about it for a while.
Stay real friend <3
Make sure you tell her!