First of all, I'm a straight female in a long-term relationship, 32 years old, with two young children.
I've had anxiety as long as I can remember (I don't have a single memory in which it doesn't feature somewhere), but things really kicked off when I was 17 - I got pregnant by mistake and then had an extremely violent and unpleasant miscarriage at around 12 weeks that landed me in hospital. I recovered, but was left feeling extremely ashamed and devastated that it had happened. After that, my anxiety became unbearable.
I know of the movie. I haven't seen it but did see the first one so I can imagine the sort of theme. I remember seeing the original 'It' movie when I was very young and being so scared that I was physically sick. It haunted me for many years.