You should not invest it at all because why should you, with holding it for a long term you can maybe become a rich man.
Because if you invest those coins you can get significant returns and when compounded with the rise in price of bitcoin it will allow you to get even more profit even faster, those that are holding but don't have many coins will have to wait for a massive rise in price.
If you do not have enough experience and knowledge about the investment, just hold your bitcoin. But if you confident with your skill, do not waste your time and see bitcoin price is getting higher and higher.
To get experience in investment you have to try, you have to use money and invest in order to learn, it does not matter if you win or lose you have to try, and failing is a part of learning so dont be afraid to lose jut use as little as you can and then when you become more and more experienced you can start by using larger amount of money.
It is investment not gambling that a person will learn by spending the money. In investment a person have to start a business or something else so in this case if a person will take the start before learning then he will risk all of his money. It will be better that he learn better and after that invest his money.