Its hard to escape from this Rat Race but what you can do is :
1- Leave your office at office. Dont bring it to home with you … (look who is talking.)
2- Go on vacation even a short one , once in a year.
3- Stick to some of your rules and principles that you have followed always. Do not change them just coz you want to adjust yourself in society. It will be good for you if you keep some rules rigid n inflexible.
4- Keep your priorities very clear to you. Your family and your health is always more imp than your business and wealth. World wont stop if you stop working for a day or a week. Stop it there and then when your dear n near wants you. e.g. a colleague of mine was attending a conf. call from hospital when his wife was having labor pains… 
now this is ridiculous and this guy should not be given Employee of the year award.
Same goes for when its to decide between your Izat and Money or some other worldly thing. Keep your respect/dignity/Izat at top of everything.
5- Do not keep money infront of you as your goal to achieve. Concentrate on achieving Peace of Mind, Satisfaction. If you are not satisfied and your mind is not at peace, you will always make decisions in haste and they ll be most of the time wrong hence more tension.
6- Use your S I C K leaves once in a month, even when you are not sick. You do not get paid for the accumulated hrs by the end of year. So why not to use them???
7- Keep yourself close to Religion. It gives you satisfaction, it reminds you why you are here in this world, it lights your way that you are walking on, it makes easier for you to make decisions, it keeps you growing mentally, it makes you strong, it makes Him happy and last but not the least it will keep you going in life.
8- Respect your parents, respect your elders.