Hi and welcome,
I bet very few of us knew the first thing about diabetes when we were diagnosed, but we all do now because we have been active members on this forum, read all the threads, asked questions, learned things. It can be like being back at school - but much more rewarding.
There is nothing to be scared of. It can be controlled or even be put in remission with a little effort on your part and some help and support from this forum. Read round, also read the main website (available from the home page) because everything you need to know is there. Take some deep breaths, have a cup of tea and start reading. Do not believe all you read in the media - much of it is bunkum. Many of us look at our diagnosis as the kick up the bum we needed to start eating the right foods and living a fit and healthy life.