Hi Guitarpix,
In my opinion learning new songs does get easier as you get more experienced as your fingers automatically press the right string or strings in the right place on the fingerboard or, in the case of your right hand, pick the right string/strings.
You will be able to play a new song immediately on seeing the music score or chords and lyrics. You will be able to jam along with others without knowing the song at all as your ears will tell you what to play.
However you can still have difficulties. I recently decided to learn Carole King's "You've Got A Friend". There is a Csus in it, a chord I have never used before, so I had to spend a couple of hours learning it which was fine but then I found I could not play C7 correctly so I had to re-learn that. It all adds to the fun of guitar playing
Take care,
Roger