Hold on, but if you must buy now be wise to use spare income.
When it comes to investing in bitcoin, always invest with the money you can afford to lose. This is the first rule of any investment. At least for me, I invest only the money which is in my bank, the reason is clear I don't need that money and I don't want my money to be left in the bank.
Hey, bro. We still need banks for certain things, like withdrawing cash from ATMs or sending money to our struggling grandparents. Because, you know, there are still many older folks who don't understand how Bitcoin or any other form of non-paper fiat money works. Even having a small balance in the bank is not something to be ashamed of here, as I believe everyone here still uses various banking services that make our daily transactions easier.
Investing all your money in the bank is clearly against the rules. You need to have alternative secure reserves. For instance, if you still have some gold in your home safe, that's not a problem. But if you don't have any other storage options apart from investment platforms, it clearly exposes your finances to higher risks.