I don’t enjoy motivating myself to go workout. Everything up until the point of the actual workout isn’t enjoyable. But the workout and post-workout I do enjoy. There is a high associated with it. And that feeling of accomplishment, and visible progress is extremely enjoyable.
The only advice I can give is to give it adequate time. It’s easy to get discouraged. Just keep this in mind: You spent a lot of time doing damage to your body, you’re going to need to put in some effort to reverse that damage. Give it some time before getting discouraged.