Working harder is NOT working smarter.
The problem is that time is finite, there are only 24 hours in any day. You cannot work all those hours physically and you have a finite capacity to create cash flow doing one thing at a time.
Say for instance you work a full time job for $20 an hour. You want to increase your earnings per day to give you an extra $20,000 per year.
You decide that you like knitting so you will sell your knitted products on eBay or ETSY in order to make up that $20,000.
$20,000 means you need to work at least 1,000 hours per year, that is just over 2 hours more per day, if you pay yourself your earned wage rate. And you knit all night anyway now just to relax.
But you also need to buy supplies of yarn. You need something to knit and one ball of yarn make one hat at $9.00 per ball. So already you need to sell your hat for $29.00 to make up your demanded earnings.
That is if you can make one hat per hour.
If it takes you three hours to make one hat, your cost is the same $9 for yarn but you require eanings of $60. Is anyone going to buy your $69 hat?
You have worked harder but not smarter.
You need to look at residual income as part of your policy. Generate income from areas where you do not need to be actually spending time working.
Look to income from stocks and bonds. They generate monthly and quarterly income. Say you have a bond portfolio that pays you a dividend of $20 per month. That is one less hour you need to work per month, or one and a half days (if you work and eight hour day) per year.
Affiliate programs online such as with Amazon, Zazzle, Go Daddy and Host Gator can pay you income two and you don't have to do much other than drive traffic to them to buy their goods and services.
Affilliate programs do require some work bot one houe spent blogging on your website to drive traffic is an hour well spent as it is always there, unless you delete it.
With these sources of income working away in the background you can use that income in order to either reduce your demanded income from your hobby type sales on eBay and Etsy.
Generate income from various means. Write blogs and generate income from advertising with programs such as Google AdSense.
The more streams of income you have the less reliant are you on any one stream.
Make sure you really make the most of every hour in the day.
Work smarter,not harder.