you can clear your jewellery using sage, or run pure water on it, or even using salt, with intention of cleansing the item. how to detect use pendulum ask if the item has any energies in it. or use the muscle testing technique
as for IPF you could see minor results (telepathy…) in 2-3 months (but using subliminals will slow the effect or using too many fields in one day) and also results are progressive the more you use the IPF the more abilities getting strengthened and expanded, the IPF can be worn 24/7 and this (strengthened and expanded) cannot happen if you don’t practice your abilities