Bluesky's 'Discover' feed (the default algo feed that you get when you create your account) is based on _likes_, not follows, so if you never like anything you'll get random nonsense.

You can try using other algo feeds from here: https://bsky.app/feeds and remove the discover feed, or of course you could just use the chronological one.

But when everything I see is awful, what do I like? I think that's my classic issue with feed style websites