You've said it yourself, making friends does get more difficult as time goes on. Especially someone sharing your mindset and life goals, and with whom you're compatible character-wise. With that in mind, a realistic possibility is that you'll never establish another friendship on the same level as those from school/college days. Therefore I think it's important to keep old friends around, regardless of what one might think of them now.
I've never relocated, but from my experience, a good way to meet new people is to take a course. Languages, martial arts, dancing...anything goes, as long as it's not some new-age hipster nonsense. You'll meet a variety of people that have a similar background as you, so you can take things from there and see where it goes.
You probably won't become close friends with these new people you meet, but hey - you never know until you try. I still occasionally hang out with some people I've met while taking various classes, and I'm satisfied with this. We're not close friends, but they make excellent company for sharing a drink and having a fun time together.
I've never relocated, but from my experience, a good way to meet new people is to take a course. Languages, martial arts, dancing...anything goes, as long as it's not some new-age hipster nonsense. You'll meet a variety of people that have a similar background as you, so you can take things from there and see where it goes.
You probably won't become close friends with these new people you meet, but hey - you never know until you try. I still occasionally hang out with some people I've met while taking various classes, and I'm satisfied with this. We're not close friends, but they make excellent company for sharing a drink and having a fun time together.