MadLordOfMilk
First Post
The original character concept should work fine 
Worse case, ask (beg?) the DM to let you reroll the same character with a new build because you realize the one you chose didn't really fit the concept you were aiming for
General advice from me still screams: "FOR THE LOVE OF [insert deity of choice here], PICK A NON-KNOWLEDGE SKILL" but that's really a matter or preference. I just felt like I made a mistake with that when I first started playing 4e.

Worse case, ask (beg?) the DM to let you reroll the same character with a new build because you realize the one you chose didn't really fit the concept you were aiming for

General advice from me still screams: "FOR THE LOVE OF [insert deity of choice here], PICK A NON-KNOWLEDGE SKILL" but that's really a matter or preference. I just felt like I made a mistake with that when I first started playing 4e.