I've found that there is a boxing gym about 40 miles away from where I live, but because I work I would only be able to go to it on Fridays or Saturdays (when i'm off). The rest of the time I would have to work out by myself. But would it help to learn from a trainer once a week, then practice what I've been taught until next time?

As I've stated before, I just want to get into boxing for recreation and excercise (and self-defense), I'm not in it to compete (unless I decide I really enjoy it).