I'm an addict.
What kind of addiction are you struggling with?
I'm addicted to drugs.
Drug addiction is a very serious issue and something you should seek professional help for. Being an addict can lead to health issues later on in your life.
Don't worry about it. I was almost clean, but then I fell backwards.
That's good that you were almost clean before because it means you want to get better! Getting help to kick your addiction is the best choice. Having someone there to support and help you will make getting clean easier than doing it alone.