Yes you can use up more of it in a year. 3,000 is just the max loss you can deduct on your tax return.
You get to first offset the loss against any gains you have each year so that can use more of it up. Then after applying the loss to the current gains if you still have a loss, you can take a max loss of 3,000 (1,500 MFS) per year on your tax return. Turbo Tax does all the calculations for you. Just enter the full prior year carryover amount.
