Can't help you with the running - sorry. I have the honor of being the world's worst runner ever. The calories are still pretty light. Just be sure to eat often enough for now. Four times a day if possible or even 6 if you can. Just be sure to include the follwing with every meal. A protien source - example: lean beef, chicken, fish, turkey, even lean cuts of pork (whatever you like). A complex carb source - example: whole wheat bread, whole grain pasta, brown rice, yes even oatmeal too. And a green vegetable, example: lettuce, broccoli, spinach, asparagus (again..what do you like). With every meal. If you still find yourself needing more calories to support those workouts or lacking in protien then is the time to consider the protein shakes - a cheap, easy source of food and energy. One preworkout and post workout works wonders. Then if you really want to get advanced,
consider adding dextrose to your
postworkout shake for the insulin spike so that your calories are carried to muscle recovery instead of gut making...but that's an advanced conversation for later. Just get the eating part dialed in for now.
pierini, amanda, or one of our runners will likely be along pretty soon to help you with the running info.
You should probably also ask the coach for some tips. Someone who actually knows you and your ability can really give you sepcific pointers to help out.
Best of luck for success in your training.