I agree with mrsD on potential danger of St John's Wort and 5HTP together.
Combining supplements (or meds) that increase serotonin can cause a dangerous condition known as Serotonin Syndrome

You really do need to be careful and it would be advisable to have a health care practitioner guiding you when you take supplements as some of the ones you mention are very potent and interactions can be problematic.

Just because something is not a pharmaceutical and is defined more as a "natural" supplement or herb, does not mean it does not have potential side effects etc. When I look at the list of things you are planning to treat yourself with, I see a few that would set off red flags for me!