"What are you giving up for Lent?" is not a question I heard growing up in my atheist home. It’s second nature for most Catholics, though -- to give up some favorite thing (like chocolate or ice cream) for Lent. But if you have an addiction to alcohol, a drug or cigarettes, I want you to consider using this Lent as a turning point. If you don't have a dependence on a physically addictive substance like those, then broaden the definition a bit: How about something nonessential like caffeine or sleeping pills? (I'm not talking about prescribed medicines that balance you.) Consider seeing if you can live without it of the next 40 days. If you want to broaden the term addiction further in the now-trendy way for things like the internet and pornography, that's OK too.
But understand that something isn't an addiction just because you use it a lot. For it to be an addiction, it should be that your use interferes with your life, you wish if didn't, and you can't stop. If you have an addiction problem, odds are you already have a suspicion, though you may refuse to accept it. Or maybe friends or family have been telling you that you do.
Make a commitment to abstain from something you have a problem with -- alcohol, smoking, gambling -- starting Ash Wednesday and continuing for the duration of Lent. Not the rest of your life. Just about seven weeks.
It might become a turning point. You might discover you like your life better without it and gain a real willingness to let it go. And if you don't manage to stay stopped, you will have learned an important lesson -- that this "habit" is maybe something more; that it has some measure of control over you...