Any time that bitcoin market price is declining the next this you should do is to buy at that cheaper price and hold till when the its price appreciate again and in doing that you will make profit and at the same time you will help the market bounce back to its fullest height.
Good point on the take profit at 12.5K. There is a lot of resistance at 13K, so it is a good idea to take profit before it hits it, but with the way the trend is going, if it reaches past 12K again in the near future, I think it will explode towards 15K.
The market value now of bitcoin has really been stagnant on this price for a while now, and I am sure that if we break $12k barrier now, $12.5k can never be the limit, I am very certain of that, I believe that from that $12k now, we will surely cross that $15k, just tat we may not really stay there for too long because f the bears we still have in the market and some investor that has a profit goal setting and has already set their goal on $15k,these people will want to dump their investment, making the price to crash back to low.
I just believe that before the year fully runs out, we should be able to see the value of bitcoin get that high before making for some further corrections that will take us over to the next year. As the rice as then declined now, the very best is to accumulate now.