Sure. I've got some experience helping others with addiction problems. First step is admitting you have a problem. The next step is finding the root of the problem, you have to ask why this is happening and develop a timeline. What happened before you struggled with an addiction to crystal meth. What lead up to it, what happened during the time you used it, and what has to happen now and later so that you can be freed from the curse.
A moth in it's final stages inside the cocoon experiences an immense and incredibly difficult battle to emerge from it's warm pod. It fights and battles, and struggles to be freed. Now, I could help it. I could make it easier for the cocoon to open, and the moth would be free. But it would be too weak to survive. Struggle is nature's way of strengthening it.
The same applies to someone such as yourself miss, who is battling an addiction. The tempation is there I'm sure to revert to using it again. And while the short term reward may be satisfying and gratifying to a point, the long term rewards of continuing the struggle are worth much more in the end.
You have to make a decision that you will be faithful to. And you should absolutely pray about it too I think. The best way to kick that habit is by making the conscious choice to not use again, and to be in control of your own life again. When you feel you are weak, ask Christ to glorify the small amount of strength that you have left so that it can be made plentiful through him. Pray for the salvation that he can offer and it surely will be yours if you embrace the Lord and take the first step towards a brighter tomorrow.