If you tilt when your aces or kings or any other strong hand gets drawn out by 74o and the like, it's helpful to think about two things:

1. You WANT the person to call you all the way to the river! If people never called you when you had the best of it, you'd never make money. If they hit their 2-outer on the river, you still wanted them to call on the turn. Even if you got unlucky this time, the majority of the time, you'll win.

2. Good players will always be sucked out on more than bad players, simply because good players are much more likely to put their money in when they have the best of it. When people suck out on you, it just means you played well, basically.

Good luck with your play!