Hang with it, yaks a great plane.
When you do find yourself in position in range hold down the trigger till he goes boom.
Worry about stacking more than 2 kills once you get gunnery up a bit.
One thing I do a lot in the yak is get on someones 6. Just follow him around, easy on the stick, letting him burn his alt & his Energy. Once both are gone they ussually end up flopping around 200 in front of me.
Thats when you hit them till they go BOOM.
Then grab alt & decide if its RTB time or look for another.
Patience, flying smart, picking fights you know you can win, flying with a wingman will all help.