To solve this question we have to make deduct these 2 years. 2118 minus 1958 will give the answer.
You are 160 years old.
(1920 months are passed.)
From 1958 to 2118 there are 160 years. If you want to learn your age in 2118 (born in 1958) your age is 160.
Let's see what will be your age if you born +1 or -1 from that date.