The next card from the pile I started the week off with was a £1 Yellow.
I scratched off the panels in the following order:
So, seeing as I won £2 on the main card, there was zero chance of me getting anything like £3 or £7 in the bonus game. I still scratched it off to uncover a piggybank instead of a diamond.
This result now means I am once again at -£50 for 2019.