Hello everyone, what do you think is the end of the current weak market performance? Will there be a bull market in the rest of 2018? If so, how many months do you expect? And if so ,how much money are you prepared to invest if you come?

No, currently we are in a consolidation phase, price has to be stabilized and after that we can see new ATH.
This may take more months before we finally see a real bull market again that can be last till next year. The price of all cryto should stabilize for now and wait until the market gain the momentum again. Just keep on investing in a bear market, and see what happen in the future.