Starting out on my own?.....or not?

I do 5 jobs a week.
Yesterday’s job meant a run back into the dock this morning where my next trailer is ready for collection. The mileage yesterday is 406.5 mile equating to a revenue of £569.00 my fuel burn for the trip is 37.98 gallons (10.78mpg) costing £189. Deduct ins and tax leaves me with £360 for the trip excl maintenance.
Just got today’s job on 7 tonne 3 drops and will do in excess of 300 miles today.
It’s not all like this but more smooth than rough…hopefully