To reel it in

Could anyone tell me what this mean?

-I'm so not understaind what the whole thing is about.
It's a little abusive at htis point. You have to ""reel it in" . Get a hobby. .........

Thanks a zillion

I am not sure. Could it mean "reel it in" as in "restrain yourself"? "Lighten up." "Take it down a notch."