it looks like kevbo gave you a pretty comprehensive answer, but here are my thoughts off the top of my head.
first of all, that’s a lot of water so i’m guessing you are intuitive and emotional and have an inner sense of truth that isn’t necessarily logical. pisces are dreamy and watery, and can be moody and secretive. this is your way of thinking, your sense of identity and self.
i’m guessing that you are seen as someone with deep understandings, strong sexual power, and possibly scary and vindictive when angered. this might not be how you see yourself but scorpio being your rising sign that is kind of the role you play in the world and the way you get your power. one interesting way of thinking about your rising sign is that it is the way you learned to negotiate the world of adults as a kid.
on an emotional level (libra moon), you may have a strong sense of how things “should” be that conflicts with the watery nature of your sun and rising signs. you have a strong need for balance and harmony in your connections with others which might make you doubt your inner voice and keep your true self secret if it might conflict with what someone else wants or feels.
you are probably a lovely, imaginative friend and lover, possibly kind of hard to pin down in terms of logistics or what you “really” want or feel. it might be helpful for you to find really grounded, practical people to be close to, and practice saying how you feel and allowing for the possibility that your perceptions don’t define all of reality. they are your feelings and perceptions and you deserve to have them and share them! and other people’s feelings and perceptions matter too. hmm.
i don’t know if any of that feels relevant or helpful. i’m interested in hearing what you think. the interesting thing about astrology isn’t that it defines you, it’s more that it gives you tools to interpret your reality and it gives you knowledge (i.e. power) around a lot of the invisible and unnamed currents in our daily reality.