mastodon.social is one of the many independent Mastodon servers you can use to participate in the fediverse.
The original server operated by the Mastodon gGmbH non-profit

Administered by:

Server stats:

353K
active users

I regret to report that the secret to making friends in your 30s is to go out and do things and then ask the people there if they would like to go out again and do more things