Unless you have an engineering degree or military experience, the training pace may be faster than you have experienced before. They will probably tell you all this stuff on day one, but just so you don't think they are blowing smoke up your butt...

Expect long days ( 8 hours class, then 3+ hours study).
Don't drink too much.
Get some exercise.
Eat right.
Study with a group or buddy.
Ground school is not too hard, but study every night because you are also studying for your oral, which may or may not be a *****.
Study limitations, checklists, and profiles while in systems, it really sucks to try to learn that stuff in a few days before the oral or FTD/SIM.
Use flashcards.
If you get in too deep, ask for help early on, many airlines will give you lots of it, (at a few companies your're on your own...)
Expect to get your @ss kicked in the sim at some point, probably the first few days. This is normal if you're new to the jet.
Practice profiles for 2-3 hours/day while in SIM.
LISTEN to the SIM instructor, and do it HIS way. Famous last words: "Back at the 141 flight school I was a check airman, and we did it THIS way..."
Before IOE, make sure you have all your uniforms and luggage, and be sure your charts, and manuals are all up-to-date.
If you fail IOE, it will be because of visual approaches.
Good Luck