Not much you can really do about it. The second hand where you flopped the flush you prob knew you were beat, so why did you rr the turn? Was the player aggressive enough to 3 bet the flop with a str8 on that board?

The hand with the king high, you cant lay it down imo because you beat his range. Even if you think he may have a flush you could have him outkicked. Chalk it up to bum luck man, what are you going to do. If it makes you feel better i stacked off 4 times this week with set under set on the flop. Thats why good players have variance. Just keep grinding man, i think you played the hands decent.