I am not anyone's financial adviser so right now I am speaking for myself, yes investment is risky and this character is not only seen in Bitcoin and crypto-currency even off crypto investment are risky.
But with the time I have been able to be active in Bitcoin I can say the risk in Bitcoin is lesser than many other investment opportunities in the long run.
The world is going tech and Bitcoin is the leading digital asset in the world right now and the want for Bitcoin would always increase, I would say invest according to your capital when in investing in Bitcoin rather than saying what you can afford to lose. If you are a long term investor and you only invest in Bitcoin I still don't see how you can lose.
While it is true that most of us are not financial advisers but what we have learned about investment suggests that all type of investments carry some level of risk while Bitcoin is comparatively more risky as is extremely volatile. Surprisingly though, it remains subject of extensive discussions across various platforms of social media, that reflects notable interest among investors. Consequently, it is considered best asset for long term investment having potential to reward its investors with significant returns.