Leveling Crafts

[This_is_Seager]

Hey so I'm leveling Leatherworking, Smithing and Goldsmithing up to around 30 and need a few tips please

1) should I complete every craft on each step for top xp or skip a bunch and just try stick to highest level first time craft?

2) For Blacksmithing and Goldsmithing should I also level Mining or is it not important?

3) I'm really poor Leatherworking > Goldsmithing > Smithing seem like a good order?

4) What sort of items I make should I AH and what do you do with all the random NQ items you accumulate?

5) Anything else I should know.

6) Is there a way to prepare multiple crafts at once so I don't have to keep re selecting it and is there an easier way like a macro to make them? I have to make like 100 leather right now and that is going to take a life time of spamming.

Thanks so much if you take the time to help