Wow, that is a hard one.
My sugestions are:
1- Change to normal expedition, until you have many heroes maxed, and can do expedition more easily.
I understand that the power of the defensive lineup in expedition, should match your 5 most powerfull heroes.
Yet the diference between your purple heroes against a Orange+4 are too abismal.
2- A new player has no chance of been competitive against a so older server.
The diference in power, level, rune, experience, heroes, etc are monumental.
Better play at a newer server 11.
It is useless to play at Server 1 with a new account.
I could explain you a mathematical reason, but I would complicate your life.