Another safety item for descending and ascending the super steep hill, covered with ice and snow in addition to using friction Yaktrax grips and ski poles is running a 1/2" x 100' line from a sturdy tree to other trees which you use like a hand railing for extra safety where it is needed.
Ascending is maybe easier and safer to do than descending and the more times you make the climb, the more doable it will become. If you think you can do it, then you can do it. After a few trips up and down, it becomes a routine type of a walk.
That steep climb was SO easy ......... no problemo! .......