Is is even smart to invest in bitcoin

I did a nice profit with btc so i would say YES its worth to invest, I'm in the BTC scene for 7 years and I always buy when the price is low and sell again when it's high. use it as a long term investment! i recommend, buy a high amount of btc when the price is at 5000$ atm it is at 10k$ so i would wait 3 or 4 months and see how the market goes