now the price of bitcoin is 12,600 $ and will still continue to rise. you should buy now and hold it until at least the end of the year to get a big profit. do not panic if you see the price of bitcoin decreases because usually the price of bitcoin will only experience a slight correction. hold until you get a big profit.
I agree with the technique you recommend, because the expensive price of bitcoin will certainly reach the highest limit, my prediction until the end of the year can reach USD 20000.
Of course this opportunity must be utilized as well as possible, but there is still time and opportunity. Invest with the money you have, don't use debt money. Be patient, I'm sure the highest price of bitcoin for this period is still long.