Would you consider letting her go on her own if she would like to do that? I can also handle 7DMT and BTMRR (actually really enjoy them!), but I can't handle Space Mountain, EE or RnRRC anymore. My DS9 wanted to try EE on this last trip, so I let him go on his own. We both had FP+ for the ride, so I walked him through the line (you can do this standby as well) and up to the loading area, and explained to the CM that he was riding alone. They then assigned him a row and I went to the EE exit which is right inside the gift shop next to the ride. He loved it, I didn't have to ride and I met him right at the ride exit. We did this at Space Mountain as well. As long as a child is 7 or older, they can ride alone.