Hi wen li,
after you both think through what you want your wedding to be like, think the 1st thing to do is sit down and plan your wedding budget for the dinner, etc. Then start scouting and book your dinner venue, if you're having one. 8th month is hot - popular venues are already booked up for the weekends. Are you having church? Then that's the next priority.
After you've got those out of your hair, you can start looking for:
1. actual day photographer/videographer (as above, 8th month is hot)
2. bridal studio incl. makeup artist(for MTM gowns do sign up by January to allow sufficient time)
the rest you can take your time:
3. studio/outdoor photographer
4. lunch caterer (if needed)
5. florist (if you need decor)
seem to recall the 8th month starts on 14 (or 16) sep next year (you could do a check). So you have half a month for your rom and customary.
oh, nearly forgot. my FH and i don't believe in consulting geomancers, but you'd have to factor that in if you require that.