your red line (nonshowdown winnings) is like -900 which is insanely low. its supposed to (...) represent you taking down small pots by making intelligent/intuitive bets, and obv its supposed to be positive. full ring players dont mind if its negative because they spam tables and just play for premium big wins , but in 6max its very important. your flop bet and turn bet frequency is lower than mine (5000 sample) so maybe thats something to consider. play in position, try raising flop raises (people sooo often fold or fold to a flop bet), calling flops and betting turns rather than insta giving up.
the best advice i can give , which i found out yesterday:
put on a date filter, order your hands by win/loss (so it shows all your biggest losses at the top). you can then double click all the big losses and see exactly what happened in the hand. do this after every session and the reason why you're losing should become less of a mystery!