When you know someone that has a good recommendation it is always worthwhile to try it. You are not married to the herbalist, so be possitive and if it does not work out there are always other methods you can try.
Since we are all so different it takes time to find answers for your own body, but it makes sense to do one system at a time.
A lot of us are sceptical with any protocol we follow, but my experience is (after 5 years) I learn from every protocol something good or bad.
Good Luck.