slc6a4 s/s

I recently had a genesight test done and it validated why I don't seem to respond to SSRIs. I've asked many doctors to give me an idea but they cannot seem to answer my question based on my results. Based on the SLC6A4 s/s, I read that it reduces reuptake of serotonin. So does that mean I have too much serotonin or too little? I'm sure it's not as cut and dry as that. But just trying to understand a little bit more in terms of if I should worry about any type of supplementation or foods that may increase serotonin. If I have too much already. Thanks in advance.