Bitcoin is good for long term, since I know bitcoin in 2015 I always buy bitcoin, december 2017 I invest about $560 when the bitcoin price is $17300 and I am patient and never panic sell even though the bitcoin price in january 2019 is under $4000 and what I believe is evident because now bitcoin $32k even reach $60k, but I will hold.
LOL.. you managed to invest in Bitcoin at the worst possible time. Back in December 2017, we had the ATH with the exchange rates hitting $20,000 per coin. And you seems to have made your investment at the worst possible time. A few months back, the exchange rates fell by 85%, and hit $3,000 per coin. But I should appreciate your patience and integrity, since you didn't sold your coins. So if I am not wrong, you had to wait 3 years to get back in to green (the prices moved past your purchase price again by Q3 2020).