Occupational Therapy has changed significantly over the years. OT's in the beginning were known as basket weavers because they used to purely provide activities for invalided people. Now OT is much more scientific. To become an OT these days, you must gain a degree in health science, specialising in Occupational Therapy. This is usually over 3 or 4 years and can be done part time if needed. In the UK the fees are often granted. You can also apply for funding through local authorities if you are already an employee.