I believe bitcoin will rise in the future and in fact it started to rise now, I believe this is the beginning that we can see some good value of bitcoin, I hope people here are keeping their faith when bitcoin price has fall back recently because they are about to make good money with the current price increase.
to earn profit from bitcoin you can keep it and you need to wait for a long time. holding will give you an advantage if you can sell at a higher price. because basically holding is waiting for higher prices?
but you should know that you will not grow bitcoin resist you? but at least will make your bitcoin secure
Or you can invest in short term with a good strategy - buying when the price is super low and selling when it reaches to your goal price amount. Trading crypto is very exciting especially when you notice some pump and dump - your quick move shall be to position yourself for profit in either pump or dump situation.