Obviously, Yes. So long as, your intention is for long term investment plan, not for short term. You can go ahead to invest with little amount you have, and hodl till when you see profits in Bitcoin you bought with little money. But have in mind, that the little money you invested in Bitcoin wouldn't give you as many profits because of the high price of Bitcoin currently. It will really take many years for you to see many profits that will entice you to think of selling your Bitcoin. But if you aim at big profits, you can apply a DCA strategy of monthly or weekly investment plan of Bitcoin with still the same little money you have.