SERM restarts are one of those very controversial topics so it’s best if you do your own research on the topic and make your own decisions.
Use the search engine and go to the TRT section of the forum. Type SERM restart, HTPA restart, Scally, etc. This is a good thread on the subject:
But, as I said before, you need to get blood tests done and do some research before you can determine if this is a good option for you.