Bad Play or Bad Luck?

On my recent trip to Arizona I met with my old high school buddy, Don, who lives in Maricopa, just minutes from my sister's house. We went to the local casino, the Wildhorse Pass and played in a $50 buy-in tournament. There were 93 players and I finished in approximately 26th place. I was running good, hitting hands and went very card dead after being moved to a new table (doesn't that always happen?). Faced with $500/$1000 blinds I raise under the gun with KQ suited to $2500 leaving me approximately $7000 behind. I am called by the lady immediately to my left who has me covered. The flop is pretty good for my hand, K/J/9 rainbow, giving me top pair with a gutshot draw. I decide to shove as it is about a pot size bet and I am committed. She calls and reveals J/J for a flopped set. The turn queen gives me 4 more outs for 8 total. I whiff the river and am eliminated. Other than throwing away the hand preflop or check/folding the flop I don't see any other options.

New day, Moose morning tournament. I am up and down when this hand comes up. Miguel, a short stack with $500 goes all-in. A young player flat calls him (he has both of us covered). I have AK on the button and decide to try to isolate Miguel and squeeze the caller so I shove for $2000 total. The player thinks??? very briefly then calls with his 6/6 which holds up as Miguel also has AK, so we are drawing very thin. I definitely like my play as Miguel is pretty wild and I felt like I could get a fold from the big (but not huge) stack and risk no more than I would on a call. The alternate play would have been to just call in position and either check the flop if ugly or shove on any flop. There were two queens on the flop so I am pretty sure the sixes would have folded to that line of play, but who can tell with players willing to call an all-in and overcall with low pairs.

After my elimination I play in the cash game and suffer bad beat after bad beat. Example 1: Raised preflop by me to $10 with K/K. Called by "Miami John" with Q/8. Hit a king on the flop for a set, bet $15 and am called by John with a gut shot draw, which he hits on the turn. Lost about $70 on the hand.

Next beat, I raise with A/A and am called by JJ. He hits his two outer.

Last hand: I limp with 2/2 and flop is 2/5/K. Sensing no danger, I check and the turn is another 5. Ramon bets $12, I raise to $32, he reraises me all-in. He has K/5 (suited). How sick is that? I quit for the day, stuck about $300.