How did you survive the 1 year regression?

My son turned one year old on the 30th and for the last two weeks his sleep has been horrible.

Normally, he’s really good when it comes to sleep. He has been sleeping through the night (10-11 hours) and naps really well (1 nap at daycare, 1-3hrs depending on the day).

The last two weeks he has been waking up screaming every 2 hours. At the start of it, we knew it was teething, but he seems to be past that for a bit but still waking up every 2 hours.

How did you get through this regression? It seems to be the worst one yet.