I tried turning the key & wheel at the same time to unlock the anti theft mechanism, do i need to turn it that hard? i dont wont to break it!

Try this and please let me know it it works for you. A pro mechanic told me a week ago that I am talking rubbish, but I got this FROM a pro mechanic and it has worked for many members here.
Resetting a Vehicle Anti-Theft System after Battery Disconnect
This is how you reset an anti theft system if you have the anti-theft light on, or your car is cranking, but you have no spark.

Doing a full reset of the anti-theft system.

Disconnect both battery leads for at least two hours.
Hold the negative and positive leads together for 5 minutes to fully discharge any residual power in capacitors.
Put the key in the ignition, but not turned on or Fob close to steering wheel. VERY IMPORTANT!
Connect the positive lead.
Connect the negative lead in one swift movement.
Wait 15 minutes for the system to fully reset.

The anti-theft has nothing to do with the steering wheel and key not turning. Most commonly the steering wheel is under tension which puts extra force on the steering wheel lock mechanism that is released when the key is turned. Try turning the wheel both ways while trying to turn the key to see if it will release. If the wheel has a little bit of play while you turn it back and forth that it is probable the lock cylinder that has failed.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

your anti theft device is activated,you need to lock and unlock your doors a couple times with the key fob,not the key,and then you need to put the key in the ignition and start it,if you dont have your key fob,call your car dealer to get a new one,they are programmed for each car only,you cannot bypass it.

TURN ON IGNITION SWITCH TO ON POSITION.ENGINE OFF.REPEATEDLY PRESS VECHICLE INFORMATION BUTTON UNTIL PRESS TO RELEARN REMOTE KEY IS DISPLAYED.PRESS SET RESET BUTTON UNTIL REMOTE KEY LEARNING ACTIVE IS DISPLAYED. IF THAT PROCEDURE DONT WORK.INSERT MASTER KEY INTO IGNITION SWITCH.NOW SWITCH IGNITION ON SWITCH IGNITION OFF.REMOVE MASTER KEY.WITHIN 10 SECONDS INSERT NEW KEY.SWITCH IGNITION ON.ENSURE SYSTEM WARNING LAMP SWITCHES OFF.NEW KEY NOW PROGRAMMED.IF YOU STILL HAVING PROBLEM RESETING THEFT SECURITY SYSTEM THE DEALERSHIP HAS TO FIX.REPROGRAM IT.

TRY REPROGRAM KEY .PUT KEY IN IGNITION SWITCH TURN IGNITION SWITCH ON POSITION 20 SECONDS DONT START ENGINE WAIT 20 SECONDS TURN OFF SWITCH THEN TURN SWITCH BACK ON 20 SECONDS WATCH THE THEFT SECURITY LIGHT BLINKING.WHEN THEFT STOP BLINKING VECHICLE WILL CRANK.IF LIGHT STILL BLINKING.TRY FEW MORE TIMES KEY IN SWITCH ON POSITION FOR 20 SECONDS.MAKE SURE YOU HAVE THE CORRECT CAR KEYS IN SWITCH IF NOT WRONG SET OF CAR KEYS WILL SET OFF THEFT SECURITY SYSTEM.IF KEY RESETTING TRICK DONT WORK.CHECK BATTERY POWER MAKE SURE YOUR BATTERY HAS 12.5 VOLTS AND CHECK SECURITY THEFT FUSE.IF ALL LOOKS GOOD YOUR SECURITY HAS TO BE CHECKED OUT AT THE DEALERSHIP.

move the steering wheel while turning the key in the ignition and it should come unlocked. This happens sometimes, its just on a bind. Like i said just turn the steering wheel left and right the little bit that you can and the key will be able to turn.

Your anti-theft steering lock is stuck.

Grab the steering wheel and pull HARD to the left, turning the key at the same time. It should pop loose.

My wife couldn't do it the other day, but it was just because she didn't have enough brute strength. The neighbor came over and pulled hard and sure enough it broke free.

It is very possible that the anti-theft steering locking mechanism is preventing you from turning it.

Hold on to the steering wheel and pull hard to the left and at the same time, turn the key. It will probably break loose and allow you to turn the key.

call the company there the only ones that can get you that key

try using a spare key first