I think The Female Man is kind of hard to get into in the 20teens, but I encourage you to go a little further. The (a?) problem is that Janet is a very difficult protagonist to care about; I think that's intentional on Russ's part, but she was so much more familiar to readers in the 1970s than she is now. I remember within the last year or so reading something by a younger reader who was totally thrown by the phrase "Mrs. Allison was a Negro," which again is historically interesting but now extremely off-putting.

Once the book diverges out of Janet's head and into the other protagonists, it flows better and there's more to think about even when we're in Janet's POV, so patience may reward you.