Stress of all sorts is unfortunately a part of many people's lives nowadays - whether they are Observant or not.
However, the Torah states that "its ways are ways of pleasantness". This is the true nature of the Torah and a Torah-life if we adhere to it in letter and spirit. How can you succeed? I'm not going to say it is easy, but I think that there are three crucial elements:
1. Be part of a Torah community that is lively, caring and supportive of each other.
2. Find a local Rabbi to speak with on a regular basis and to learn Torah with - and receive his advice on how to improve your lot in life.
3. Have a positive attitude in your daily life – and express this by praying to God.
I wish you much happiness and success.