Just got my package today. Some of the parts look way bigger than I expected. I currently use t-tape and can wear it during the day at work. This does not look like that. So I assume that I will have to use it at home. I am wondering how long should a session be to get started. I will have to use it in the evening after work. The manual is vague and suggests that it is up to yourself to figure out. What are others doing.