I am 18 years old. i would like to stay healthy and reduce anxiety by taking high-quality ginkgo biloba tablets. is it beneficial for teenagers as well?

Hard to say: These supplement products are not subject to review by the US FDA .Clear safety data is complicated by the availability of numerous products of uncertain content and strength. Any material strong enough to be effective can be strong enough to do harm.GB does cause increases or decreases in blood pressure in some, it can interfere with a number of medications. I would never take it.

You have asked: about multiple different substances. I am concerned that you may over-do it. Why not skip some of these supplements and stick with the medication prescribed by the provider. Many of the supplements are fine by themselves in moderation BUT when you start mixing supplements/ herbals and using them in conjunction with prescription medications - it can create a problem.