I waited till my bloods dipped down to 300 before i started pct which was approximately 3 weeks after last shot.
If you have bloodwork to verify your TT levels were below 300ng/dl then you started PCT at the right time.
Wait until you're 4-6wks since stopping the SERMs. Then do bloods. You might need another pct, you might be fine, you might need to consider TRT.