What blood tests do i need to do to find out what vitamins and amino acids supplements etc i need to take?

Tests: Your question has a supposition that you need a lab test. There are rare needs to check vitamin level and even rarer need to check amino acid levels. We check the vitamin levels people that are possibly malnourished or have poor absorption of nutrients. Lab testing, like all diagnostic, is a resource to provide health care when needed based on clinical medical needs.

None: If you are eating a mixed diet, there is no need for these tests. Have a healthy diet, exercise 30 minutes/day, drink plenty of water daily so your urine is mostly colorless, have safe sex, no tobacco alcohol weed or street drugs. For nutrition: http://www.choosemyplate.gov/. Get HPV vaccine. Wish you good health!