Bitcoin is dropping because:

It is still a small child and has to learn to walk before it can run.
It is affected by the loss of confidence of a lot of new people to Crypto (depressive Bear market)
It is re-adjusting because the manic Bull market pushed the price up too high.
It is re-adjusting because USD Tether might have manipulated the market.
It is seeing a selloff by speculators wanting to take advantage of the BCash ABC & SV fork.
Because bitcoin has evolved in cycles that require re-adjustment in value from time to time.

Just buy more...