What Do You Wish You Knew Earlier?

There are a lot of things I wish I knew earlier. There are probably some things you wish you knew about earlier as well.

I wish I knew about the method I use to get over 100 followers on Twitter every day earlier. My method involves following people who have similar interests and unfollowing the people who don’t follow you back.

What do you wish you knew? Please comment on what you wish you knew earlier so everyone can read a giant list. You may know something right now that someone wishes they knew.