Good mentor is a guy that gives you a good advice, this is what it is all about. Sometimes few words can save you thousands of peds.
If you found a mentor who's advises really work, follow him, give him your last peds, carry his bags and shine his shoes.
If the mentor you got doesn't have the knowledge (or if you already know everything and don't ask for any advice), he can hunt with you, carry your bags, shine your shoes and give you all his peds... it's all worthless anyway.