2001 Hyundai Sonata White smoke

My car burns oil like crazy. Well to me it does because anytime I drive over 33 miles I need to put more oil in. I check the ground and there never is an oil puddle on my garage floor.

I had not put oil in like I regularly do after driving a long distance, but when I did OMG!

The car ran about a block and then a huge cloud of white/gray smoke came out the tailpipe! It lost power like it wasn't getting gas. I thought perhaps I had put too much oil in it and when I checked the dipstick it was doubled the full line capacity.

I had the oil drained and refilled to the proper level, but the white smoke is still there just not as thick. Aside from the smoke the car runs fine. I drove it around the block after the oil was changed, the smoke still there just not as thick, pull in to my garage, turned it off, and it wouldn't start right up. I waited a few minutes and it started right up smoke and all.

I lost my job after 19yrs and simply can not afford a new engine or to replace head gaskets. What is causing this and is there a product or anything I can do besides cry and pray?