I don't think the seed is your problem. If you're freezing while building your first home, you're in a biome that is four levels above any place you have any business being. The only place you can freeze is the Mountains. Your trying to build there at the beginning of the game is like trying to build a space station before you have a spacesuit. You're likely to die before you get there. Build your first base in the Meadows and move from there when you're ready. Nothing says you have to stay in your first base for the whole game.