That's a very wide-open topic.
Do you have any specific questions about specific things?
Tactics, gear, equipment?
Start with asking your guide what to expect each day.
Understand that elk are much different than deer. Learn their anatomy so you'll know where to aim & where not to aim in different scenarios. Lots of good YouTube videos on this very important subject.
If you're considering using mechanical broad heads, ask the guide if that's OK.
Which of the 6 weeks are you hunting?
Get yourself in shape
Have the correct clothing, boots, rain gear, etc. for a full range of weather conditions.
Get your equipment dialed in to whatever effective range you're comfortable with & practice shooting in different positions.
The most important thing is the wind. You will not beat their nose.
There's tons of threads here with great info. Use the search function.
Enjoy the trip & the experience & don't let not punching your tag be the sole metric of success.
Be as good of a hunter as you want the guide to be. Listen & do what they say & tip well
Good luck!