Odysseus meets the Goddess when he meets Circe. He had already been away from Ithaca for a long time, and faced Polyphemus, and she is the first kind person on his journey to help him get back to Ithaca.
Although Odysseus never has a mentor that dies, there are many trials he has to face without Athena by his side, giving him advice directly.
Odysseus had his Apotheosis when he is with the Phaecians. It a point in his journey where he get to relax and reflect on everything he has learned before returning home.
Unlike most heroes, Odysseus doesn't have a physical ultimate boon. His boon is to get back to Ithaca, which he gets as he returns.
The Phaecians are Odysseus's outside help. They are not supernatural like the Gods and Goddesses, but they do help him get home, which he can't do by himself.
Odysseus's return is when he comes back to Ithaca and gets his kingdom back. It doesn't happen immediately, because he has to kill the suitors before he takes his kingdom back. Once he has power, he gets to return to his known world as a changed man.