There are no guarantees in life, but the odds are that if you can take care of these 3 things in your life, the rest will take care of itself.
1. Be good at one thing. The 'thing' doesn't matter. What matters is that you are better at one thing than anybody else. Build that skill. Hone it so much that its shines through even in dark. Being good at one thing and knowing about it will inject confidence.
2. Be a marketeer. Marketing is not a skill only needed by a corporation. You, as an individual, need it more. To market yourself. To market your creations. To showcase your work. To articulate and defend your thoughts. Even Apple's iPhone needs marketing. So cultivate marketing skills!
3. Be the salt. Ask any chef, or cook, whatever dish he or she prepares if there isn't salt, it isn't anything. Salt adds value. It completes the flavor. Same way aim to add value in whatever you do. Be it work, study, or any assignment. The more value you add, the more valuable you become.
An update:
In a weeks time, I am putting up something that will be useful for all AeSI students currently in section B or on the verge of training. So stay tuned.
