You go to Hell because you are not born-again as you replace the indwelling Holy Spirit with the Sabbath, when Rom. 14.5 says there is no such law to keep the Sabbath.

Since God says no longer keep the Sabbath, that you still keep it and make it a law for yourself and judge others with it, you judge by the evil spirit in your spirit because you don't have the Holy Spirit.

You can have a day for yourself or not; for such things there is no law, but you make it a law and reject the Holy Spirit that is the rest in the believer that fills up the Sabbath which the Sabbath pointed to.