I didn't use any blockers ever, never had it suggested nor prescribed, was just taking injectable estrodial, that's it, worked fine for me and I started nearly 10 years later than you are. But perhaps a blocker would've yielded even better results, and without me having to take such a large dose of estrogen, I dunno. At the time I never really had any info on blockers. What I'm curious about is, should I be taking a blocker next time I get back on the hormones, should it be considered a necessity, are there any others that have done without it?