Hyundai accent 2001

I overfilled my oil on Monday night, as I was just trying to top off and overdid it. On Thursday things began to have issues…white smoke out of the exhaust, car seizing up on the road, shaking while idling and taking alot of effort to get up to 20-30mph. I left it alone on Friday, emptied the oil on Saturday and replaced the filter and put only 2 liters of fresh oil in. Still have the white smoke and the shakes. Am I doomed here?