I think for the long term bitcoin does have a very high potential, but to achieve this there will be many cliffs and valleys that will be formed meaning that it requires strong mental and confidence to be able to benefit long-term bitcoin.
Yes you are right, the market prices is based on supply and demand so you should always think positive or read different speculations that will make your confidence stronger to hold you coins and that is how you will be gaining profit in tough times like now.