By this point you should find your fingers becoming more coordinated and your thumb growing independent. This means it will now take less conscious effort as your motor skills will begin to take over the repetitive parts and you can concentrate on some of the more exciting aspects of your playing.
The song is still incredibly popular and has become a standard amongst fingerstyle guitarists. In fact, any picker worth their salt has an interpretation. It’s become the Stairway to Heaven of the acoustic guitar.