Reduced T can certainly have affected that, but starting E was one of the best feelings ever for me, lol. Don't not do it just because you're not super excited anymore. If you're unsure though, try taking it anyway and then reassess how you feel in a couple weeks. Nothing to say you can't stop it, but you won't know how good it makes you feel until you try.
It sounds like I'm pushing drugs or something, and I sorta am, but....yeah.... You'll probably be happy.