The issue with her point is that this advice comes from someone who has it easy. It is very easy for me to a buy a shirt and tell a poor man, who is naked, to simply buy a shirt.
Our parents grew up in a very easy environment. Their parents took care of the governmental issues, they had good social circles. These social circles are important for the future. You can use them to find more opportunities and get into jobs. You go into a meeting the boss will say 'oh you're the friend of GrayWolf?' And you have a job. The economy was good too. We lived in high trust societies.
We don't have social circles, we have a bad economy, we can't walk into meetings, shake the boss's hand and get a job. An AI is filtering our applications. We can't make an impression. A pdf file is our impression.
Your mother has no clue. Don't feel bad. This stress she's putting on you is unnecessary. It is typical woman hysteria. Try to listen to her without a fight and not care. In one ear and out the other.