From my experience as a purple belt, you always kind of suck lol.

It usually takes about 1–2 months just to start learning the “language” of grappling. If you’ve never done it before, it can feel super weird at first. Getting used to basic movements like bridging and shrimping usually takes about a month, depending on how often you train each week.

Give it around 6 months, and you'll already be way ahead of the next brand-new person who walks into class.