Why do I fail in parkour?

[Carnage]

Hi. I am a italian traceur (correct me if I am going to write something wrong please ). I started to pratice parkour 2 years ago with some friends.
I am the weakest in my group and I do not know why! Also if my friends would take a holiday of 1 mounth (without doing parkour) and then return, they will be always able to practice parkour like first.
They wouldn' t be worse or weaker than first. How is it possible?
If I would take a holiday of 1 mounth than I am sure I couldn' t do parkour like first... My skill would fall down very much! I have to train myself 3 days in a week otherwise I degrade.

Why I have that problem? Is it a mental issue or simply I am less capable of them?

[lexy3643]

Hey, it could be all in your head. What i would suggest, if you feel that you aren't good at parkour start conditioning your body in your local gym to get better and see what happens

[teamchupacabra]

Video your self and see what your doing wrong then improve on that aspect