Im finding this a very confusing game, I did allright upto Bresha Ruins 005af and I was hoping to get to Bresha Ruins 300af which is supposed to be the same place but in the future (snowy). Instead I ended up at Sunlieth waterscape and unfortunatly its overwrote my savegame. does anyone know if I can get back to Bresha Ruins an any timezone

I don't have an answer for you, but have you tried looking through guides such as the one here? Hopefully one such guide could help you find an answer to your question.