How to succed this mission?....is that possible? Please help!!!

No, not possible to succeed. There are two criteria to get success.
1) Destroy the enemy Su-33 aircraft (8 of them). You and your wingmen should be able to do this OK.
2) Tornado aircraft destroy the Admiral Kuznetsov. Not possible, the Admiral K has SAM/AAA defenses too good for the Tornadoes to penetrate. Their only chance would be if they managed to launch all their missiles at exactly the same time so that they all arrive at the target at the same time to overwhelm the Admiral K defenses. But this doesn't happen in this mission, the missiles arrive in small groups that the Admiral K can deal with.

I've experimented with the ME (Mission Editor) to make a mission to kill the Admiral K with a Tornado attack, it isn't easy.

It is the last of the 7 missions in the standard F-15 Campaign anyway so you dont need a success to move on to the next mission. So provided you killed all the Su-33 enemy, give yourself a big pat on the back, get yourself a cold one out of the fridge and move onto a more interesting aircraft than the F-15 which personally is my least favorite.

the first time i ever flew that mission the tornados actually killed it. but then i did something stupid and died before getting back home, i don't remember what.