Goa trance is one of the few music genres which allows me to focus on a task but nowadays it tires me too much (my brain gets tired), cause of age. So I tend to stick to mid-tempo and techno (ambient would me too tired as well but for different reasons). If you want to get back into the music, consider some of the Astral Projection remixes (or works others remixed of theirs, like Filteria).