(I realise I'm a massive hypocrite here because I've invested a fairly sizeable chunk of money in bitcoin itself )
Investing is the same with gambling. Its not about win or lose but in investing / gambling you can always lose your btc if the operator run away with your btc . The difference is the time to get a profit, with gambling you will get profit in short term if you are lucky enough but in investing the profit is in long term
When you invest in a company, you study its finance report and do a research on the sector/market the company is in. Then buy the shares. You will make profit in long term. For gambling, there is a house edge against you. You will not make much profit.