if you're inexperienced, outside often feels safer (at least it did to me). people are leaning away from you instead of toward you, and if you screw up, you won't crash out the entire field. the problem is that if there's a crash near you in a turn and you're on the outside, you're much more likely to get pushed out or caught behind it, so it really isn't safer.
also, being near the front doesn't require you to be any stronger than being at the back - and, in fact, it's easier because you don't get "accordioned" as much. but you need to be comfortable in the field because there's more fighting for position up there. if you're still getting comfortable, just move around a little and get a feel for what it's like to be in the middle of things.