kindly refer to the provided documentation, just 10cm left and 5cm upwards from
-- THIS --
please dont hesitate to post any questions you have after having read at least the basics on your own.
one of the best ways to start is deploying and running the Seam hotel booking app. from there you can read the Seam books. The Yuan/Orshalick book is good for overview and DAllen dives more into details. the ref doc is pretty good as well.
It takes a long time to get up and running with this stack (depends on how much experience you have with EE 5 and Hibernate, etc)... good luck.