Firstly addiction is anything you always do, that you can't do without be it good or bad.
We have good addiction and bad addiction, In terms of good addiction you don't have to try stopping it maybe in some situations you might think of stopping it because of the ignorance of men, you just have to have it in mind that is only God that rewards.
Secondly we have bad addiction that has destroyed so many people lives. Example stealing, some people can't do without stealing even if they decide to stop without going the proper way they can't because they have become much addicted to it that anywhere they see something there body will be like magnet until they take it.
Another example is lying. Lying is really a very bad addiction, even if you are being held red handed you will still try to find your way out through lying which makes some people to loose trust on you.
According to the book of proverbs 19 vs 9 it says "a false witness will not go unpunished, and he who breath out lies will perish".
Thirdly is drug addiction example taking in marijuana which is a deadly drug, which also kill slowly.
If you stay for a long time without taking it, it will be like you are going crazy.
If you are really addicted to drugs like this is better for you to try very hard to stop it because it affects you in so many ways both mentally and physically.
There are many more but I just want to use this few examples so that you will understand the meaning of addiction.
Stopping a bad addiction is really not easy but you just have to make yourself a promise of stopping it and you won't go back, after promising yourself you go on your knees and tell God to help you because you can't do it alone without him and you also stop interacting with people or things that will take you back to it.