What our view of the effectiveness of religion in history does at once make evident as to its nature is--first, its necessary distinction; second, its necessary supremacy. These characters though external have been so essential to its fruitfulness, as to justify the statement that without them religion is not religion. A merged religion and a negligible or subordinate religion are no religion.
I think no matter what you do you go through stages when you play. There was a number of times when I didn't do very well or was tired. It was too much to combine school and tennis altogether. Parents need to step in and say, take a little time off, do something fun.