Contemplating about a healthy diet

I have been contemplating things.  Writing a healthy grocery list has been a good start.  However, trigger foods are my weakness.  As much as I love them, I realize that they don't love me back.  I eat them mindlessly and I gain weight.  I gained most of the weight that I had lost back and now I am back to square one.  Now it is getting harder to lose weight.  But I realize that no matter how hard, it is not impossible.  I will keep that in mind.