Stop watching TV or browsing the internet and, instead, make things (and read, and play).

Be upset when you're being simply entertained. If you see a commercial it's likely entertainment. Be upset when you see a commercial and do something else.

It's not an aesetic desire you're only tired of junk food for your brain. You're tired of being spoon fed predigested pablum. You're not happy with circular stories with characters that never change.

You're interested in yourself and being better. You're interested in your friends and loved ones and their journeys and lessons.

Step one might be "stop reading Hackernews so damn much".

I recommend Cal Newport's books, "Digital Minimalism" and "Deep Work"