re: Poker & Need Advice
Without stack sizes, antes, blinds, and player information, or even when you got it all in, I can only offer two suggestions.
#1 Read Harrington on Hold'em Volume I and Volume II. Maybe read them a couple times each. The second book covers the end game strategy, which is what you seem to be having trouble with. But I don't recommend reading the second book without reading the first.
#2 Play more to widen your perspective. If you were all-in on the turn, he only has 6 outs, meaning he was about 13% to win. While is seems the universe hates you, the more you play the more you'll see that things balance out over time. (Unless you only remember the bad).
If you were all-in pre-flop as a short stack, a big stack is going to look you up every time with K/Q, which you're only a coin flip to win against.