First thing I would do is run one energy type weapon.....having both phaser and plasma doesn't help you to more damage. Secondly, I would probably drop the ET 1 and pick up Emergency Power to Shields 1 giving you both a hull and shield heal/resist. Last off, weapons to max when you attack, then when you start to take focus fire either pop an aux battery or switch full power to aux and hit your heals. Then when your no longer in danger (i.e. you ran or they stopped firing at you as much) switch back to weapons power.
Also at a lower level... and possible even later consider going only two dmg types to max your skill usage.
I would drop the beams. Go with one torp and Dual cannosn and Turrets. Then use rapid fire and HY patters... attack patterns if you have the room. Trying to do a little of everything is holding you back.