Looks like an old thread, but maybe it's time to resurrect it.
In biblical terms, you should 'test the spirits', that is to approach things with an open mind and not believe everything you are given at face value.
Part of the identification procedure is 'by their fruits you shall know them', and the bible lists the nine fruits of the spirit, which you can research for yourself.
Jesus spoke of 'feeding the hungry', 'visiting the prisoners', 'clothing the naked', and so on.
If you are doing these things, and manifesting the fruits, you probably are on the path to STO.
If you observe the behaviour of others, especially if they say one thing and do another, then you may need to re-assess them, and make a mental note about that.