I have been stuck trying to pull the huge ship out of the sky forever. Im moving the sticks correctly but the ship just barely moves. THe tie fighters are killing me too fast to budge that thing forward. Am I missing something?

Yeah i have that tie fighter problem to, when i pulled the destroyer to me, and i have to bring it to the ground, a group tie fighters come, then i let go the destroyer, and defeat the tie fighters, but then the destroyer is back normal, an i have to pull it back to me, and then come the tie fighters again, and if i'm fighting with a rancor or junk titan, you have to tap X O Triangle or Squere, but sometime there comes a X O Triangle or Squere with a red cross in, what do you have to do then?

same with me, your supposed to move it until the second waves of ties come, then release it, kill the ties and grab back on. it takes me too long to kill the ties though and it moves back to its starting point.

upgrade both your Force Lightning and your Force Capacity.
Pull the SD towards you (it has to literally be facing you, nose-to-nose) and when the TIEs get close, zap them.

if you have enough force energy, you can blast them continuously enough until you defeat them in a little amount of time.

re-grab the SD and get it back into position, and then repeat until it crashes

I thought this was pretty easy, I just pulled the star destroyer until I had only a fraction of health left, then force grabbed the tie fighters, and during the third wave of fighters, the star destroyer was grounded.

Though I think now that it would've been easier with the force lightning...

And what about if you are killing a rancor or junk titan or other giant beasts that you have to tap a button but sometimes there comes a button with a red cross in it on your screen, what do you have to do then with the button that is showed with the red cross trough it

it means you pressed the wrong button.

also for the tie fighters i found it easier to grab one and throw it at another.

Alright, I'll answer all of your questions. The tie-fighters were annoying, however, you can destroy so easily a caveman can do it. Look for the pillars on the bridge that you're on. Don't be shy to use them to your advantage for cover; 'cause jumping around trying to dodge their fire doesn't cut it. While taking cover behind the pillar don't get too close, just close enough that they can't hit you; and at the same time use your force grab to fling the floating debris at the tie-fighters. You also need to time it right in order to make it easier to hit them. There is a pattern, look for it. As for defeating the rancors, all you need to do is jump behind them, use the force lightning in mid-air, or preferribly use your saber throw in mid-air if you have it. The only reason I prefer the saber throw over the force lightning is because it doesn't make you a sitting duck. If you're surrounded, and on the ground use force repulse by pressing "L2 and 0" for the PS3 version. That should give you enough time to move.