Anybody who is going into cryptocurrency should choose bitcoin and then focus on a long time investment plan because there is every chance of making profit in the future even though profit is not guaranteed, invest with the amount you can afford to loss.
Just like you said, profit is not guaranteed and most people come into bitcoin investment with the knowledge that they will make high profits from it then they invest little amount and hope that the price will skyrocket to the moon so that they will make enough profits. People needs to focus more on investing more from time to time and increase their portfolio instead of thinking about the profits they can get. Let us even remove the profits that can come along while investing in bitcoin, only the security of your assets is even enough.
And especially in the case of Bitcoin investment, you must maintain a long-term perspective. Whether the price of Bitcoin decreases or increases slightly due to short-term volatility during the investment, you cannot panic if it decreases, and you cannot be greedy for small profits.
Long term investment is guarantee for huge income earning than short term investment that is only bring out small income to short term investors. As long you have the resources that will fue your financial status to endure for the long holding, you will experience good income that will increase your income because long term investors always like to release their bitcoin during bullish season. Any newbies that is not financial strong, shouldn't approach long term investment because it will make them not to exercise patient for long term if fund is needed in their family or at home to solve other things that need urgent solution. As a newbie, start with Short term investment before you can upgrade to long term investment with much experience from the short term that will make you comfortable with the long term investment to grow financially.