Nothing goes up in life, dollar value, salary, income, food price, smart phone price, everything going down. The doomsday is near.
That's not totally accurate. Inflation keeps going up so that prices of goods are always increasing every year. And actually you mention dollar value but that has also increased over the past year as well.
What about bitcoin,the prices keep increasing every year right.

Bitcoin can kill inflation that is why we need decentralization to be implemented everywhere but still people are concerning about the prices compared to USD.
Yup bitcoin keeps increasing every year, that is until 2017. Obviously last year and this year isn't living up to that trend. I think it's now time to look at the bigger picture and stop making expectations from a short term standpoint.