We are all Bitcoin enthusiasts here, however, Bitcoin is, let's face it, a high risk investment.

If you bought Bitcoin at 200$ (or 2$!) and sold at 19000$, the road to "big house" is easy. But most don't do that, exactly because they don't afford to do that.
And if you have to watch your investment scared that you may be losing money, like many who bought at 12k-19k last December, then you better stick on smaller goals.

The best approach imho is to achieve something stable you can afford with the traditional way, even a loan in the bank, and invest only some surplus "you can afford to lose" into crypto.
Of course, the bank loan doesn't have to be too big and nearly impossible to be paid. And then, whenever the crypto currencies grow big enough for your needs, you can pay the loan. This may happen in a year, or 10, or not at all. If the loan is paid with the help of crypto, then you can dream for something even bigger. One step at a time.