2mm microadenoma? Wow that's hard to diagnose even with a MRI.
If I were you, I wouldn't go for TRT. I'd definitely try to restart first. PRL is inhibitory to the HPTA, but even if caber gets rid of the (moderate) hyperprolactinemia you have, the axis might not be able to resume its normal function, so a restart is needed.
However, I'm not sure if clomiphene will be of help, as your E2 is already low, but personally I think it's worth trying.