Hey Adir Olf,
No need to be jealous, you'll get there too. It just takes time and practice, soon you'll be doing it without thinking. You have to teach your fingers the positions too, and this can take a little time.

Here is a little shortcut for the C chord, and after you get used to this it should be easier to switch chords. Try making a G using the middle finger in the 2nd fret on the 5th string, the ring finger in the 3rd fret on the 6th, and your pinky in the 3rd fret on the 1st string. When you go to the C chord, you just drop the middle and ring fingers to the 4th and 5th string. since your index finger is free, put it in the 1st fret on the 2nd string. After getting used to this, you should be able to switch from the other G chord position too.

This will help your fingers remember the position, and also make it quicker to get to. I hope this helps, and just keep at it, you'll get there.