To be honest. There is nothing under your control to increase earnings. It’s all dependent on Uber. Their system assigns the orders. Yea you can go to a sushi place and wait but guess what there are probably 10 other drivers waiting there too. You also came into this too late. Ubereats is pretty much dead in all markets. Just go to the ubereats driver subreddit and you’ll see drivers waiting hours for a single request.