I used to vape nicotine, and for years I felt embarrassed by how wasteful and stupid the habit was. Then I asked myself: What situations make me vape more? What do I enjoy about doing it? I realized pretty quickly that I was using vaping as an appetite suppressant, and to give myself a little jolt of extra energy, the same way I might use caffeine. Once I realized this, it was pretty easy to replace vaping with eating snacks and drinking more coffee.