Why Does Minecraft Keep Crashing? - 1

I'm modded… A lot, and I'm trying to use Forge, but everytime I use it, on 1.6.4 right after the MAJONG screen, it crashes, and on 1.7.2, it just crashes without reaching the MAJONG screen. I don't know if it's because I have little memory, or I have too many mods, or whatever, but please help! Only answer if you're a computer genius, just saying.

Too many mods can make the game crash. Your computer usually has a limit of the number mods that Minecraft can handle. A great example of this is using the FTB modpacks. If you have a crummy computer and you try to run FTB Monster, your RAM is going to be out of memory very quickly. I have a pretty decent computer and it can only run about 120 mods or so and if I add anymore, the game will crash even before getting to the main menu.

Make sure your mods are the same version as the Minecraft that you are running on.

What if i have only 9 mods?