My feelings fluctuate from day to day. Some days I feel pretty good and confident about myself, other days I think I'm the most worthless thing on the planet. Lately I've been feeling pretty neutral about the whole thing.
I have the same problem. Just find a topic that interests you, and post your thoughts. with time and practice, you'll get used to talking more on the forums.
I have a great appreciation for all of my friends, but in particular, there's @Ice Princess Silky <3 @Sparklefan1234 @Clawdeen @EtchASketch @Snoopy Fan @Crypty Scribbles who always give me a lift when I feel down. Thank you.