Yep.
I would say it is ESPECIALLY when you are a student it is time to grind. This pan of your life will turn around that.
But PLEASE don't be dumb, learn to take breaks as well, it will help to grind better.
It's a marathon, not a sprint
For 3D students: Most I’ve met simply aren’t doing the hours needed to get into the industry. Studying only 10:00-16:00 every day won’t cut it - particularly since only a portion of the day is spent on actual work.