As an asset that came into use after gold was considered the best asset to invest in, it was found that bitcoin has similar quality as gold and in addition to that quality, bitcoin is in  a digital form which makes it even better than gold since you do not need the bank to store it or have to cary it from one point to another. in the real sense, bitcoin is just bitcoin because it has it unique nature and does not need gold for it to be given it own defination.
To every reaction, there is always a cause and so, bitcoin does not just go up and on. Buys, sells, adoption, FOMO, regulations and a whole lot of other factors all contribute the to volatility of bitcoin. when you stay long enough on the forum, you will learn and have a better knowledge on these concepts in details.

there is no way you will be more profitable holding bitcoin for the short term than doing same for the long term. the only way that can happen is if you have the means of accumulating more withine the short term and withine same short term, become experiences a great degree of bull. if that is not the case then long term investment is more rewarding thna short term investment.

just learn, interact and invest while you are here. this is what the forum is all about. at least byrelating with people of like mind, you are certain that you can get the right information that will make you a better investor.