You can't force someone to change.
You won't be able to convince your parents with words that you might be able to manage their finances better than they can.
Why not? Because you have nothing to back up.
Imagine your own child, half your age telling you they know better than you what to do with your money. Despite having done nothing with their own, and as you say, currently unemployed.
Help your own finances first, then go back to them when they can recognise on their own that you know what you are saying.
Is your father selling software or support?
If he is selling software, you could try asking him to give you a go at selling it.
Or even better, don't tell him, do it anyway then turn around when you have results and show him.
|