Mandi
all you need to do is start cooking , with the advice these guys have given and some common cooking experince anyone can cook in a dutch oven.
i started out cooking on the campfire, just let it burn down to coals, or take a shovel and take coals out of the campfire and set up outside the fire ring , so you can still have your camp fire too..
invest in a tri pod or have your crafty husband make you one

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you will need a shovel i prefer a long handle to keep out of the heat of the camp fire ,some leather gloves,and i like to use some real long tongs for handling coals for putting on the lid like others have said try and keep ashes off the top makes cooking uneven and makes a mess too, when lifting the lid to check food.( turn the lid 1/4 turn when you check your food makes the top cook more even.)
get yourself a good lid lifter too makes life alot easier, i welded 4 horse shoes together standing up right to make a place to set the lid while stiring or serving..
i went to bass pro and bought a new pre-seasoned oven and carrying case i just couldnt get past the idea of what someone might have put in a used dutch oven

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i have been adding stuff over the years and i keep it all in a big tub together makes it alot easier to keep track of everything.
cooking in a dutch oven is alot of fun , enjoy..