1) Since i was about 7 or 8 i think, So roughly 12 years.
2) The films i guess (That too obvious?) lol
3) Seeing the TD/TK's in the movies. Still waiting to start my first costume though
4) Quite a big part, Lets me research all the different things about Star Wars. Wouldn't know a thing with out it really, lol.
Hope this helps.