So I re-calculate, you made roughly £5.71 per day for 14 days to spend or ...
if you remove tax and expenses that's about £2.30 to play with per day for 14 days. (not exact but just for arguments sake)
Well the first time I had a job ever as an indy it was a no show. So you made more than me. I paid £30 for the room, £5 for travel. I didn't want the room provider out of pocket. See how it goes, learning experience, gain confidence and all that.