First 2 days is strangely hard

I would always feel a lot of confidence and motivation the first day, then fold before the end of the second day. But after I had circumstances that kept me away from any triggers for 48 hours, I am sitting at day 3, and the temptation is low to none. I want very much to experience the mental clarity of detoxing for 28 days. 90 days. Hopefully for good.