Two, actually. The second one probably wouldn't do it.
Well so far the only other Sharon I've met looked slightly different. Dimension Z sounds right though. You did survive. That was... at least a couple of years ago for me, by now. Want to know anything that happens after or just the bit that's going to be really hard to miss where I'm Captain America now? (Steve's fine, he retired again.)
Actually. I think you are. There's really only Jess Drew, Carol, Melissa Gold, Ava and Flash from another timeline... Wait, no, one person outranks you. Peggy's here, from the other big timeline, back when she was young.