No need to anxious. Your CFI is there to keep you safe and prevent anything wildly dangerous while you’re teaching yourself to fly.

Look outside, and learn what correct looks like. References on the ground are already giving you gobs of information. The feel of the yoke and the sounds from the engine are also giving you continuous clues about what the airplane is doing. No sim I’ve seen reproduces all of those additional channels of information.

Where simulators are really helpful is with procedural flying, like practicing instrument approaches. You can’t log your desktop sim for currency, but advanced training devices are good enough in the FAA’s eyes.