When you have a big idea, it is exciting and motivating. Then you begin the actual execution of the tasks to make your idea become real. These are banal tasks that are seemingly unrelated to the exhiliaration of the goal. That makes them hard to do. Do them anyway. I have experienced this sequence before and it leads directly to the goal by completing one task and moving on to the next one. Some of the tasks are difficult and new. Some of them feel like showstoppers. Go around them. There is a new path just beyond.
I had dinner with a friend last night and she started a very successful business doing what she loves. She said when she is working she feels like this is exactly what she should be doing. She tried to think of her ideal life and what it would look like. And she says her ideal life and her real life are the same. What an achievement. We should all be that focussed.