How man SNGs did you play before you started showing profit?

[Ixnert]

Broke even for my first 30-40 and then went solidly +ROI at the 10s.

But I'm now in the middle of (well, hopefully near the end of) a 300+ tournament run at break-even to slightly-negative (at the 30s now), so yeah, I wouldn't read too much into 100 tournaments -- just keep studying and keep learning and you'll probably be positive eventually.