One ounce of olive oil per stick of butter doesn't sound like it would be enough to make much of a difference in terms of health. You would still be getting a lot of saturated fat and olive oil already has some saturated fat.
If I were you I would just try to forget about butter. If you stop eating butter for a long enough time, you will eventually forget about it. Concentrate on enjoying the delicate flavor of olive oil. And concentrate on enjoying the taste of each individual food. Enjoy it for what it is. Each food has its own particular taste. Why does everything have to taste like butter?