If the autocorrelation below confidence for time series, does it mean, that there is no sense to you past (lagged) data for the forecasting?

And probably the best result is a distribution mean or median (depends on metric mse or mape).

**Example:**

[![enter image description here](https://i.stack.imgur.com/05gdom.png)](https://i.stack.imgur.com/05gdom.png)