Hi Bruna,
I was diagnosed as a Coeliac in 2004 and have followed a very strict gluten free diet since then.
I do buy a commercial bread from the supermarket,baker is Golden Hearth. For cakes,biscuits,& puddings etc I make my own using gluten free flours , & dextrose.
I suggest also that you consider joining the Coeliac society,cost is about $50 a year-but well worth it for current Aust information,recipes & resources.