Supply & Demand isn't only something that affect this crypto market or any financial market, it's something that affect your own life. Everything that is Bought or Sold is a SLAVE to this rule of Supply & Demand.
Everything is about Supply a& Demand, it' what make something worth it or simply worth the dirt.
Crypto is volatile because it's till in the hands of the minority, once mas adopted & owned by the largest numbers of people, this volatility will diminish & the crypto market become as kind of " safe " as any other market.

BTC made great run to be honest at that time, it had the best performance too among all the crypto market, next to BNB of course.

In My Opinion, the next bull run of the whole crypto market will start by the close date of the BTC halving (May 16-2020), this wave won't be as fast a of late 2017, first 2018, but it may take couple weeks or even months in a steady Bull Run.

BTC may dip even further to some great cheap prices (5k or even below) again before we see it rises again to start it's new Bull Wave that may break the last All Time High. This (IMO° may take us to even 2021 to accomplish this scenario).

YES, YES, YES, it's a great investment deal even from today if you're an investor willing to throw some $$$ for the next 2-3 years.

You may check Hedera man, really worth the checking, that's one of the best (IMO), one of the kind " invest & forget for couple years ".
They have a real hard working team, updates still come in time, their Blockchain is impressive, it's just a matter of time before we see it competing with other major Blockchains.