I hate to advise anyone to get into a stock or something like btc when it is at an all time high. However, as contradictory as it may sound, often the time to buy a stock or investment is on its way up not down.
I expect btc to go up over all over time long term including from here but there will be intermediate ups and down. I had a vision that it would reach 11,500 then drop back to 9500 and eventually go to 13,000. We shall see. I am not selling, been accumulating and holding since 2013, and I will accumulate more btc even at these levels.
If it hits 25000 next year will consider selling. Consider. Not definitely.