My son just turned 1 yesterday *sigh* so what should I start doing with him such as foods & learning on his...?

I still can't believe my son is 1, geez I'm amazed how time flies. WOW!!! I've been doing some reading that you can start giving them a lot more foods. We did start introducing whole cow's milk and he likes it. But still give him about 18oz of formula, once this can is gone i'll buy him the Good Start 2 meant for 12 months and older so they still get their vitamins. I usually give him Gerber yogurt in the morning or applesauce (mott's) that has no added sugar in it, all natural. BUT my question to this is , I usually feed him by spoon. Should I let him 'practice' feeding himself? When do they usually start feeding themselves? I got this thing in the mail yesterday from good start saying they should have the consept down with feeding them selves with a spoon/fork and say "full" or "no more" when full. made me feel like my son was behind on things then.