It's winter now, and the best thing to wear is a sweater. No sweater is not worthy. Turtleneck is the warmest sweater style, but for girls with big head and thick neck, you should be careful when wearing turtleneck.
There are many kinds of high collars, mainly the difference of neckline. For a girl with a short neck, the neckline is too tight, which will cover your neck. If your hair is unkempt again, you really have no neck. However, it is not impossible to wear a high collar, just choose a loose neckline, but you should not be too loose. Exposing your neck properly is the thinnest, so you should take care of it yourself.