I'd suggest trying a little barefoot running on a groomed surface (like a soccer field) to help you work on form and foot strength. Whether you take barefooting further from that point is up to you- it's not for everyone, but I personally feel that it's been a big part of preventing overuse injuries while I've trained for ultramarathons. (I've worked my way up to running 7-8 miles barefoot and wear shoes for anything longer)