First, we need to establish whether the soil in your garden is acidic enough for your azaela to thrive. As you are 'new to this game' there are two things we can do to find out the suitability of your soil. You could look around other gardens in your area, speak to locals who have nice gardens and therefore would (hopefully) be knowledgeable....when you look around you should look to see if there are other azaelas growing locally in the soil or other plants that like an acidic soil eg rhododendrons, camellias.
The other thing you could do is purchase a ph soil testing kit from local garden centre or DIY store. They shouldn't be very expensive nor difficult to understand.
If we find that your soil is suitable then follow the tips already given. If however your soil is unsuitable then you will have to keep your plant in a pot inorder for it to do well. In which case you will fill the pot with only ericaecous compost. Hope this helps, come back if it doesn't.....or you have further questions