I think your investment management is pretty good, traders should also apply the same thing if you want to invest in the crypto world safely
It's not a "safe" method, rather than with cutting down your expanses you already have money to save and already have backup if market falls down anytime. So, you don't need to wait forever just to get it back.
But if you are jobless and yet you are only a newbie here in the forum, it will also be difficult for you to earn much here too.
It doesn't matter if you are newbie or not, if your brain is newbie too :p
If they have good knowledge about Bitcoin and Altcoin, then they can easily rank up.