Autos can be enormous, taller than 5' - not saying that's what you have though. Autos *are* easier to mess up. A regular plant can take a helluva lot of punishment in veg state yet still be productive in flower. Frankly, I will severely punish some plants when they're in veg state to test their determination to survive. That's a test grow, not a "regular" grow where I have an expected outcome.
In disparity with regular seeds, an auto is fragile, any disturbance in veg state can punk the grow. I also dislike the inherent lack of control of veg state duration - I want to determine that, I don't want the plant to decide. All that being said I have an RQS Gorilla Glue auto finishing now. It took forever to finish. That's another thing about autos - predicting the duration of time to finish can be crap shoot because that auto strain will always have phenos that behave unexpectedly.