Have you ever lost at you professional~!?

Seem you are the right person for this company, but is not the right post for you!
Seem I always feel that I only have 50% chance, end up I realize that actually I am lack of skills!
Where I would be, I feel lost........

Should I the job which is not my style and age group.
Or
I should go for a job which is i hate the work but in a right and suitable style??

I am lost!