Investing in bitcoin is never risky, currently $16,000, and it will increase from now to the end of the year. All predictions are very positive, bitcoin is indeed making new breakthroughs.
I think you need more experience. Risk exists in any type of investment. And if you want to keep yourself away from this risk, you have to do proper risk management. I understand that you are talking about long term investment so you are always giving equal importance to bitcoin buying. In some cases, risk can be controlled by analyzing the market a little better.