Zen is not something to get excited about. Some people start to practice Zen just out of curiosity, and they only make themselves busier. If your practice makes you worse, it is ridiculous. I think that if you try to do zazen once a week, that will make you busy enough. Do not be too interested in Zen. When young people get excited about Zen they often give up schooling and go to some mountain or forest in order to sit. That kind of interest is not true interest.
Just continue in your calm, ordinary pratice and your character will be built up. If your mind is always busy, there will be no time to build, and you will not be successful, particularly if you work too hard on it. Building character is like making bread — you have to mix it little by little, step by step, and moderate temperature is needed. You know yourself quite well, and you know how much temperature you need. You know exactly what you need. But if you get too excited, you will forget how much temperature is good for you, and you will lose your own way. This is very dangerous.
Buddha said the same thing about the good ox-driver. The driver knows how much load the ox can carry, and he keeps the ox from being overloaded. You know your way and your state of mind. Do not carry too much! Buddha also said that building character is like building a dam. You whould be very careful in making the bank. If you try to do it all at once, water will leak from it. Make the bank carefully and you will end up with a find dam for the reservoir.
Our unexciting way of practice appears to be very negative. This is not so. It is a wise and effective way to work on ourselvweas. It is just very plain. I find this point very difficult for people, especially young people, to understand. On the other hand it may seem as if I am speaking about gradual attainment. This is not so either. In fact, this is the sudden way, because when your practice is calm and ordinary, everyday life itself is enlightenment.