First of all, you're doing this for yourself. Remember that.
You could go cold turkey, but whenever you are tempted to seek the degeneracy, remember why you're avoiding it in the first place. Your goal is to become a better man than you were - free of vice, with a strong will, body and soul. It's not going to be easy at all, but trust me, it will be absolutely worth it.
Also, drink lots of water, whenever you're tempted. Think about why you want it, ask yourself, "is this what I really want?"
"do I need this?" "Can I live without this?" Say it out loud and answer it too. Having a little mantra can help too. You have to talk to yourself about it. Write if you have to.
If it helps telling you this, everyone here has a limited amount of time to live. Wouldn't you want to spend it on being the best person that you can be? Or to live a little longer? It could be a goal, to see your grandchildren grow, or even the birth of your first great grandchild. Although that is a long time from now, making little goals can help.
And also, we don't know when we will die. It could be in many decades, it could be in a few minutes. Wouldn't you want to die being your best? To die with pride? I don't want to sound like a Christfag, but your last moments in life are pretty much your last moments in life. How would you like to be remembered by family, friends, and your loved one? Ask yourself that too. You could go into Christianity, but it's your choice. It works for some, moral wise, and it doesn't for others. Some people don't need it to keep good morals, while some do.
You can do this, friend. I believe in you. You must believe in yourself too. You're doing this for yourself. I'm proud of you for taking the first step, and to admit this here. You're on a righteous path, brother.
Enjoy camping, be safe and watch out and defend yourself from dangerous animals and people. Best wishes to you.