Santa with his red hat

Yo poker-dogs,

Been really lazy writing, but I am a bit frustrated since no one is responding to my messages.
I have been playing alot lately and my tournament results have been marked by bad-beats. Why am I losing with AA to Q3 all-in pre flop?
Why do people call my monsters with rags?
Why do monsters loose to rags?

I have no other answers to the questions above than that good, solid, mathematically correct poker will win in the long run.

Finished second in a MTT last night. 70 entrants, buy-in Euro 20 gave me Euro 240.
I played solid all the way and kept my stack close to average all along the way without any spectacular hands. My monsters held for once.

When I finally was heads up my opponent had 75% of the chips and I obviously 25% the following happens:

I have BB and gets 64 unsuited. My opponent calls and the flop is: 359 (rainbow).
I have an opened-end str8 draw. I decide to move all-in. My opponent calls with j3 and nothing happens on turn or river so fi wins the tournament with 3389j. Was it wrong to move all-in?

I have 8 outs to hit the str8 (approx 32%) plus the probability of hitting fours or sixes. I also have the value of the chance that fi folds which gives me the blinds. I´m not gonna present the maths behind, but I think that the move was correct (you have to take the stack sizes into account as well).

What do you guys/gals think?

Regards

Santa Claus