Student asks his teacher about Bitcoin

I asked my professor about Bitcoin and how to achieve a continuous financial income? He told me to stay away from short-term trading because it is a risk to your capital if you do not have enough experience And focus on storing for the coming years because Bitcoin has been rising for the past 15 years and it is likely to rise strongly. The best for you are investment funds with continuous financial profits because they are better from personal experience. What do you think?