6. Start saving and investing the money earned from frugality.
One of the most important tips to grow personal wealth. I will note, investing is not a guaranteed way to grow personal wealth; however, long-term investments and
diversification will give you a high probability of a positive ROI over decades. It's important to invest and it's important to invest early. The longer your investments, the higher yields they return. Instead of spending frivolously at a young age, you owe it to your future self to invest early.
It's better to save at an early age than regret it when we get old without enough savings or investment. We can't chase and turn back time so as much as possible, we should embrace the opportunity as early as we can as a preparation for our future. It's fine to enjoy life but we should be responsible at the same time. Better suffer now than regret later.