Guild Wars 2

I payed my hard earned money for (HoT)/(cheeseburger).
I (played it some)(chewed it up), enjoyed some of it, but am not satisfied.
I can’t (raid)(eat pickles), because (my class isn’t meta atm)(I don’t wanna).
So after consuming the product, I have come to the conclusion it wasn’t 100% my favorite thing, so give me refund (Anet)(Burger place).

I have only played engineer up to level 30ish (i think, maybe 40), it was very fun and I want to play him again. I took a break from GW2 for awhile, but am downloading it again right now.

I’m looking for tips on leveling and Engineer and builds that work well. What kind of stats will I need and what works good in PvE content. I don’t have much WvW experience, but it looks fun. How do eng’s stack up against other classes, what do I need to avoid and such.

Thanks in advance for any and all help given.