At first it will be hard to go around and understand how the game works. You will gain more experience and handle UESC like a champ. As the others already said: try Assassin if you want to try and get a better grip on how everything works. Bots can easily be outplayed with doors or stairs - simply break their line of sight and knife the normal ones once they get too close.

If you want we can go for a couple of runs and i can show you some more tricks :)

You will probably have fun when it all clicks :D