I think it depends on your personality, if you are prone to addictions than even trading crypto can take into something addictive. Like gambling or alcohol it can get out of control. So there is no real danger when looking at bitcoin specifically, but rather with the person. I think to avoid addiction you should not invest all your money, but rather money that you saved for investing, this way if you lose the money you will not feel so bad, you will also remain in control of your emotions. another thing is to stick y your plan and remind yourself why you invested in the first place.