1st Main Event of my life (tips)

Hi All,

I will play for the first time the Eureka Main Event (EUR 1100 BI). It is the most expensive tournament I have ever played. Fortunately, I got the BI from a satellite.

I think my ranges PF are quite solid. Still, I have many spots that I do not feel comfortable. For example, I struggle to find good bluff spots on the river (my hand-reading skills are not very good). I also do not know how to select good 3bet light hands.

Do you guys believe that a tool such as GTO Wizard could be good for practicing such things?

Would you also have some general tips for these main events tournaments? From ways to warm up to the color of my sunglasses (if I should wear one)... everything is highly appreciated for a guy who certainly will breathe intensively when AA comes...

Thanks, folks.