yes, that is a very important message here we can invest in waste money where we can take profit for the long and short term investment so always look before you leaf always invest this money which is not needed all time.
Investing with saved money or money that is not used for anything is a very good step, because playing with risky jobs must be smooth, which means that any money you want to use has nothing to do with other things so you can focus more when choosing coins. and also in determining its direction when the duration is long or short.
Also investing with cold money will prevent you from any stress when loss occur, because we can afford to lose that money so any potential of depression is so little. We should study the market first if we want to invest in anything like NFTs, Metaverse, DeFi and others. Don't let your greedy take your money and dont let your patience make your decision become wrong.