How do I set bullet to move towards a touch.x and touch.y ?

I have a spaceship and I would like to add a bullet behaviour to it. How can i use the bullet's Set angle of motion to point towards where I tap, specifically Touch.X and Touch.Y?

Thank you very much

Any ideas? :[

It's okey, I found out

Didn't know exactly how to use the angle expression, wasted like 2 hours (not kidding)

Now all I need is to find out how I can rotate the player so the ship won't instantly turn the other way.

Thanks!