Don't worry about "how long" it takes.

Just keep at it, until you no longer worry about landings in any attitude... whether the plane is next to your viewpoint or even far away.

With more advanced 3D airfield sims like Realflight, you can position your viewpoint up high on a tower, far removed from the flight line.

This is good practice for emergency deadstick landings when the plane is far from your view.

Also one thing I recommend to newbies.... and helps GREATLY....

Take the plane out so far that it is only a spec in the simulated sky. You DO NOT want to be able to see how the plane is oriented.
Swirl the sticks around so that you loose the sense of which way the plane is oriented.

Then try to recover and fly the plane ONLY by the way it responds to your stick inputs.

In other words, you want to be able to quickly tell if the plane is upright or inverted, coming towards you or away from you, etc, etc., simply by blipping the controls for a split second.

Once you can do that, you'll always be able to recover your real plane VERY quickly, if you momentarily loose orientations or the sun blinds you for a moment, at the airfield.

This is a very important thing the sims are best at teaching you.