Congrat's on your 3 months sober. I too choose to use AA in my recovery. Being sober I can choose to be positive and happy in recovery or stay the way I was while using and drinking always down and negative. Today I choose to be positive, no matter what is going on I always find something to be grateful for.
Why don't you try to make a list of 10 things you are grateful for in sobriety. Feel free to add more if you think of them.