I think saving in cryptocurrency, Bitcoin to be precise, is also the same thing as investment in Bitcoin. Although, in definition, they quite mean different things, but in a common sense, if you used your money to purchase Bitcoin and you intend to save that money for a long time, it serves two purposes, which are your savings and also your investment. Bitcoin is a digital money.
With the above statement being made, I can say that I have done most of the things you listed. I gamble, but not with cryptocurrency. Trading can not be seen as gambling, unless for a trader who buys cryptocurrency and deposits it in his casino account for the purpose of gambling.