The first thing you need to do is relax and explore your body. Go to your room and lock the door then take off your clothes and lie on your bed. Caress yourself find out what feels good, this includes caressing your breasts.
Before you get to that point you may want to look at the following link . I found this by typing "Female Masturbation" into a search engine. This was the best one I found for to answer what to do for someone doing it for the first time. There are others if you want to search for other sites. You will find fingering under a sub section.
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