Its been a roller coaster and i believe ill be tweaking it at least “27 times”

The first part of the day was great i was at £95 profit within the first couple of hours.. then....
By mid afternoon i was at plus £7.00 and i thought it was too good to be true. However I've persevered and left it for the day and it has slowly crept up and i broke £100 around 7pm.
What are other people’s experiences of creating there first grey bot?
What should i be looking at to tweak it. Im no professional with excel either. Im getting to grips with guardian slowly.
Any advice is always welcome... best of luck people.