Investing or trading can only be the amount that it is not a pity to lose. To start well with little money to learn how to control emotions. And in any case, do not take loans and do not sell property for this.
This is a good advice people should not invest all there money on crypto because before our money will grow in crypto it will take for long time that's why we should save some of our money over than investing all our money on bitcoin and other cryptos. And i think investing the 70% our money is enough.