Sitting on cash—how to (DCA into) VWCE and actually chill?

In the recent months I've figured out that my strategy is to buy a general ETF, forget about it and focus on increasing my earnings.

I decided on VWCE, and statistically lump sum is the way to go, so I thought: I'll just go all in on VWCE and focus on my career/business.

I nearly lump summed all of my cash at the peak, but fortunately ended up only going in 10% at ~136 and ever since then the market has been in freefall.

Now instead of being able to chill and focus on starting my business, I'm compulsively checking reddit and what's going on in the world, since I want to invest the rest of my money.

Is there a proven strategy that's good for these type of situations? I figured it'd be best to just DCA the market somehow (e.g. 10% every month), but with people saying this could be a recession that takes years I'm not sure how to proceed.

Again, I'm not concerned about maximizing my gains as much as possible—my goal is to chill to focus on increasing my earnings.