Welcome Oliver, glad you found us and congrats on making it to 5 days!
This site has every tool necessary to make your quit successful - it's just up to you to use them. The most powerful tool at KTC is called Posting Roll. "Roll" is your daily promise not to use any nicotine product. You make that promise first thing every day and then keep it. It's simple but it won't be easy. The premise is that "forever" is too big, so you break it down into managable chunks. You can be quit for one day, hell you did 5, just be a man of your word for one more day and worry about tomorrow, tomorrow.
You post roll in your quit group. Based on your date, you will be in October 2017. It's October because that's when you will hit 100 days, considered here to be a major milestone and Hall of Fame status. It's not the end, it's the end of the beginning.
If you're serious about your quit and want to use this site as a resource, go post your name and day count in the October 2017 Quit Group. There are very few rules here, but the most important one is that you must be on Roll to use the resources at this site.
You will find a neverending wealth of experience, support and information on the pages here. Every kind of struggle, success and failure is represented somewhere here and it's all available to you, if you invest the time to find and use it. Get to know your fellow quitters and invest in their success.
You're going to be in for a rough period. You're correct that the real trials come after the initial system shock. None of us were successful before tapping in to KTC, but I guarantee that this program will work if you are willing to work.
Welcome again and I look forward to seeing you succeed!