How do I know If I'll succeed in dental school?

I'm having fears about failing out of dental school. I finished my undergrad with a 3.83 GPA, but I feel like I had it easy because I had 21 credits covered from AP classes. I took the DAT last year without taking it seriously because I wasn't really set on dentistry. I scored a 17 AA and I'm planned to re-take it next month, but I'm having anxiety not so much about the DAT but dental school in general. How do I know I'll succeed? What's really indicative of my ability to make it through... How do I know If I'll succeed in dental school?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums