Maybe you should start like this:
After my primary and secondary school education I attended a school for graphics and design. I completed my school education in 1981. From 1982 to 1983 I trained as a laboratory assistant with a photographer.
In the period between 1984 and 1987 I aditionally worked as a shop assistant selling wine at my parents' shop. From 1987 to 1989 I was trained in a vocational training course for wholesale dealing. After that my I moved to Munich. Within the next 12 years I worked in several companies with different job specifications. I started my professional career as a wholesale dealer. In 1990 I became a manager of a grocery. Four years later I changed my line of business to start as a manager at an organic farming shop for 6 month.s After a period of unemployment in 1995 I started working a timesharing joi with Siemens, Amersham medicine (Formerly called Nycomed).