A way to commit to your diet might be to encourage yourself to take a break periodically. A it the time of reading this, if you have the tendency to eat unhealthy snacks or foods every day, that will be the biggest challenge to your journey.
The automatic habits you have mean you have to be consciously aware of this at all times, and find something to replace it.
Fruits are amazing because they are sweet, flavorful and hydrating. Raspberries, blueberries, blackberries and strawberries are our go-to because they are very easy to eat in bunches (much like chips or popcorn). If it's still too bland in the beginning, try putting condensed milk or chocolate hazelnut spread on them to start, then slowly cut that down too by focusing on the freshness and flavor of the fruits themselves.