School vs carrier training and ? about Atlas

Hello,
I am a female wanna be trucker. I live in West Texas but will be moving far south ear McAllen in a few months. I want to get my CDL. I am studying for the written test now and will get the physical soon. As far as actually learning to drive a truck, I was wondering what the opinions are on which route is better...school or carrier training? My only issue with carrier training unless it was local and home daily, is that I am not at all comfortable being alone with a strange man for weeks at a time. My primary goal would be to do regional driving and I have been looking a lot at Atlas. If I succeed in getting my CDL and if I was able to be hired on with Atlas, does anyone have anything good or bad to say about them? Thank you for your input in advance.