I could have £100+Million and don’t think I would ‘stop’.
Play for fun and entertainment, and don’t think winning any amount would change my view on that.
It’s hard to answer if you are up £17k as there no relevance – if you deposit £100k then your 0.17x, if you deposit £100 your 170x
I think I would withdraw a good chunk, ie £15-16k and then set a loss limit on the remaining balance for a month to have a chill out.