How to make money faster on sims freeplay for iphone 4s?

So I'm level 10 on sims freeplay and I only have like 400 dollars. Is there any way to make money faster/ more efficently? I have all my sims employed at a firestation (I have four sims), and I plant corn every half hour that I can. But I need to make a good couple thousand dollars to a) make some more sims with semi-decent houses and b) to complete goals. I have the update so the simleon store cheat won't work, and I've tried the cheat where you turn the Wi-Fi off and change the date while you're farming. It hasn't worked:/.So please give me any suggestions about how to make money faster and in more amounts.

FOLLOW EACH STEP JUST AS I STATE THEM!
1. Have Several Sims (4-11 Sims)!
2. Go to a house with planting patches and have each Sim plant "EGGPLANTS" OR "ANYTHING" that pays alot of MONEY.
3. Press the "Home Button" (THE ONLY BUTTON YOUR IPAD/IPOD/IPHONE HAS DUHH!)
4. Go to your IPOD/IPHONE/IPAD "SETTINGS" >>"GENERAL"
5. Scroll down to "DATE&TIME"
6. Where it says "SET AUTOMATICALLY" turn option to "OFF"
7. Now "SET DATE&TIME" POPS UP.
8. Change "DATE" TO "JULY 1ST 1985"
9. DOUBLE CLICK "HOME BUTTON"
10. Little APP ICONS WILL APPEAR AT THE BOTTOM OF YOUR SCREEN.
11. "HOLD DOWN" SIMS APP UNTIL "RED MINUS" APPEARS. "PRESS IT >(THE RED MINUS)"
12. "EXIT" SETTINGS APP
13. Go BACK TO SIMS APP AS IF YOU ARE GOING TO PLAY AGAIN. TOWN VALUE SCREEN SHOULD POP UP. HIT "TAP TO CONTINUE"
14. YOU WILL SEE SIMS STILL PLANTING.
15. EXIT GAME
16. Go back to "SETTINGS APP"
17. ON DATE & TIME WHERE IT SAYS "SET AUTOMATICALLY" HIT "ON"
18. GO BACK TO SIMS GAME AND WALA START POPPING YOUR FULLY GROWN PLANTS.