You can only add up to 10 attribute points and 15 skill points at character creation, at level ups you can go up to 20 attribute points and 5 more skill points per skill per level.
Make sure you leave at least one attribute at less than 20 so that you can continue to level up by editing the remaining points to zero (the game won't allow you to level up if you've got any points remaining). This will make sense once you've learned how to use Cheat Engine.
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem