In this case, you have to analysis that which field would bring more benefit and which is safe for you.
In my point of view, investment would be the better of the two sectors. It's comparatively leading less risky than gambling.good Investment needs a good and right time decision nothing else. On the other hand, gambling needs luck.
Correct. But still, I would go for investment because it is the safe way on how you could earn bitcoin rather than gambling. Even though you are good, still you are going to lose because that is how gambling works, because of the house, that is why we are experiencing loses every time we are doing gambling. On the other way, if we are going to do investment, which we know that there are also some risks, especially if we are going to invest to those HYIP sites out there which we don't know when are they going to run off.
That is why it is important to investigate it first if they are really safe, if they are legit or what. But if you are going to invest on the gambling sites, be sure that you are going to invest on the bigger gambling sites, because you are sure that they are going to pay you and not going to scam you.