What will happen to this market within a year...? Investing on BTC was great on last few years. But if we invest on these days for a 1 year, will it gives a good profit or not?
It depends on the market condition and when you enters into the market if you entered in the market at Jan 2018 and want to cashout at Dec 2018 then it is really bad for you,or if you entered in Jan 2017 and cashed out in Dec 2017 then you made really good profits so it is highly unpredictable more more than two years will be definitely good to invest in my opinion.
Everyone and his grandma is wise after event and in hindsight. I can say that people who had bought in the summer of 2015 (closer to August) reaped insane profits if they were off-the-chart lucky to sell in December, 2017. And what does it tell us from a practical view-point? Essentially nothing. Some people can be extremely lucky, some devastatingly unlucky. And that's pretty much all.
Still, there is an age-old trading wisdom which says to follow the trend (and it has purely statistical explanation proving its veracity). Right now, the whole cryptomarket goes down, and we don't know for how long it is headed south, so it is better stay away from it until the fundamentals fundamentally change (pardon the pun).