If you are using the word long term, so its mean invest your bitcoin for 5 year, or may be more. otherwise less than 5 years investment so it is not long term way.
Secondly, investment need some time, than it would  give you good profit, and the big investors always doing it. I am also doing investment, and now i m getting profit, but when i was starting it, it was difficult for me, passing the time we can manege it.