Do auto’s normally get this big?

You've come upon an autoflowering seed pack with extraordinarily good genetics. Cherish these seeds. If she wants to grow larger, then let her grow larger. We're all fans of b beautiful ladies in the growing world!

Generally no. That is a good grow. Its rarer for an auto like that But with 1 plant. Optimal conditions, she had a greater chance of been big. Clearly its the right light for veg. She's gonna take a lot to bring to harvest. 150w with such a big plant. Hmmm. Clearly can be done. Anyways. After pre fower. (Upwards growing has stopped) you can super crop. Or HST the nodes and fell them. So whatever way you want them to drop. Rub your finger hard and it'll find in on itself. Usually its best jst to do this a day or 2 before stretch stops. As that way, they can rise their heads a bit/bringing the stems up. But if there's no more stretching in her. Look up SC. You'll make supports and HST the main steps. So you'll wanna drop that big to, and kinda level her off. As this will be the best way to get good bud from the entire plant. Unless you got more power in that light. This would be the clear way to go.