THEREFORE, I BELIEVE DELAYING INVESTING IN BITCOIN UNTIL WE HAVE DISCRETIONARY FUNDS IS A BAD IDEA. Time is ticking and can't be undone. Rather than training our mentality first, it's better to just start investing. I emphasize again that this mentality will naturally develop once we start investing, and a naturally formed mentality is better. Because, the real test lies in real-world situations.
You seems to be missing the whole concept, remember we are advised to only Invest from our discretionary income and not from the money you're supposed to use for expenses. Investing from the money you're supposed to use in sorting out your expenses is a wrong approach, and this method will make you to become a trader at some point. Because I believe that some day you will be tempted to sell your holdings for short term investment since you decided to use the money that you're supposed to use in sorting out your bills to invest into bitcoin. We know that time is ticking but that doesn't mean that we should start rushing into bitcoin investment when we're yet to build our discretionary income no, you need to make a proper planning bitcoin investment is not a short term investment that is why we need to plan so that to enable us continue making the HODLin until we complete the circle.
I think if we invest using our spending money then our decision will be wrong. Because I have thought deeply that when I do not invest from my discretionary income then when we need money we will have to sell it, if we do not have money except the invested money to meet the family needs then even if the market goes bad we will have to sell it to meet the needs then we will fall into big losses. So I need to invest only when I have extra money than I need I will invest with that extra money. But I agree with your words that you said Bitcoin is not short term so I should always keep in mind that I will invest with the money that I can lose I mean extra money from my monthly income which my family will not need and I can profit by investing that money.