You have already started one important part of finding out - which is joining a community like this one. Unfortunately there is no way to tell "good and bad" - all you will get is opinions/advice/help/etc but fortunately a lot of people here I trust have good/helpful opinions.

For any specific piece of information "is xyz practice dangerous?", "what different ways can I use abc toy?", etc. an internet search will in most cases return as much information as you can possibly imagine even on subjects restricted to our lifestyle - but once again you have to make your own decision - keeping your mind open is the key I think.

VV