[whataboutj]

IMO (not an expert by any means) I think you played the first hand inncorrectly and the second correctly.

In the first hand after the flop when your $20 bet got raised to $50 you should have put on the brakes. What you didn't discuss was your read on the other player which would definitely come into play with that type of raise. Assuming there was no read to dictate otherwise I think you "Fell in love" with the trip 7's and convinced yourself that the other player couldn't have had pocket J's. I have done this many times myself so I recognize the thought/pattern

For the second hand you raised big to try and isolate against 1 player, which you did. After the AI push you had the best hand when the money went in - you got unlucky on the board. Short of somehow trying to control the pot pre-flop I'm not sure what else you could have done differently

I am curious to hear what some of the other - more experienced - hand analysers have to say about this

J