I've just requested an archive of my #Twitter data and will fire up https://semiphemeral.com/ shortly after.
#Semiphemeral is a free open-source service which can automatically delete old tweets, retweets, likes and DMs according to custom thresholds - created by @micahflee.
It is worth noting that auto-delete capabilities are built into Mastodon as of version v3.5.0 which is really cool!
The settings can be found in Settings => Automated post deletion (or by visiting /statuses_cleanup on your instance)
For a free service this is pretty awesome @micahflee