The first place I recommend you check out is Jovian Archive. This is the first and official site of the work of Ra Uru Hu, founder of The Human Design System which came to be in 1987. He passed away in 2011 but his legacy is being carried on by his family and long time associates.
Go to https://jovianarchive.com/Get_Your_Chart to find out what type you are by getting your FREE chart. It is very important to have an accurate time of birth in order to generate a correct chart.
If you are not sure you have the exact time, first try locating your birth certificate, next contact the hospital where you were born, or the department of vital statistics in the city/state you were born. You should be able to order (and pay for) an official copy of your birth certificate (US only) here. Another possibility is rectification through an experienced Vedic Astrologer.
You can also contact me to help you work up an average of what components of your chart stay the same throughout the day – regardless of the time.
Next read through the series on https://jovianarchive.com/Human_Design/Why to learn more about how the Human Design system can help you make decisions.
~ Karissa Skirmont
P.S. Jovian Archive licenses the IHDS International Human Design School as the official certifying agency for Human Design Professionals. There are imitators and unlicensed black marketeers, please make sure that you deal with legally licensed organizations and professionals to ensure that you are best served. I personally worked with someone for 2.5 years not fully understanding what this means, and since had to unlearn things that I had been taught incorrectly.