I don't mean to be a killjoy, but I'm a huge Uber hater. Are you sure your driving is really profitable for Uber? Actually that's poor phrasing. I'm sure your driving is profitable for Uber...but is it profitable for you?
In the example you gave....
The week total was $849.52 for 38.25 hours. Hourly rate = $22.21/hour.
I'm hoping the 38.25 hours includes waiting around in between fares. If you were driving around for 38.25 hours and averaging 30 mph, you drove extra 1147.5 miles for Uber. Let's say your depreciation, maintenance and fuel expenses are close to rock bottom and you manage to pay only 29 cents a miles (half of the IRS estimate of 58 cents/mile on average but realistic for an economy car with a DIY hustler doing most basic maintenance things at home)…now you subtract 332.78 from your gross. You mentioned you need a more expensive insurance to cover your Uber activity. Call it another $10/wk.
Now we have (849.52-332.78-10)/38.25 = $13.24 per hour with no benefits and with self-employment tax owed that a W-2 employee would not owe. I don't mean this to come across as me crapping all over your hustle (on the contrary, I applaud you being out there working extra to enable your FI plans, start a business, whatever) but I think you need to take a harder look at the numbers. Maybe you'd put some different assumptions in there somewhere and come up with a different result.
If it truly is time that would be expended wastefully just on your commute, then sure, even $5 an hour is a good haul. But what you describe is working an entire second job for almost 40 hours a week.