bisto:
am i living in a fantasy world and better to stay as a driver…
You haven’t thought it through and are living a little in fantasy land.
You would need an O Licence and that costs money. You would need insurance, both vehicle and Goods in Transit. You would have to also pay tax and N I. You would have a phone bill to pay, you need the phone for getting work. You need to eat etc.
Not much of your £90 left, and that is assuming you would get anything like £500 for Manchester - London which is unlikely 