XXBBB vs 3xTF, 2x Def, Ph
Suggestions:
Start playing smaller games. For example, when I was learning how to play with Soontir Fel, I begged people to play me Fel vs 2 Tie Fighters, then Fel vs 3 Tie Fighters and finally Fel on 4 Tie Fighters. That way I was able to concentrate on leaning what makes that ship special but you can apply the same method to anything.
Of special note, in the above example, an average player couldn't stop Fel with four tie fighters but our best player at the time stomped him with just three! Player skill is really important in x wing! You will see the same ships differently as your skill changes.
Some list advice, if you are willing to pay for auto blaster, trim a few points from the list and change them to heavy laser cannons. The heavy laser cannons will tear the imperial ships appart!