I see two houses of particular interest.
(1) The 12th house of "secrets" or hidden forces, shows three stories:
Pluto says that you tend to hide your power, or be a people pleaser. Often people don't realize your strength, and therefore don't handle your personal discussions or confessions with the seriousness that you deserve.
Venus shows an inclination for secret love, which may be a reason why you feel extra cautious when talking to your friends. You also have Mars Venus conjunction, which to me shows a lot of energy, often also sexual energy.
Mars in the 12th tells me that you may have been back-stabbed, or betrayed by people above suspicion. You didn't see that coming.
Of course, your personal will and character will determine how you handle the energy of these 3 planets in the 12th. In any case, to resolve the issue, I'd focus on the root cause, which is your private life. It is ok not to share your personal info with everyone. Just recognize the role of these 3 planets, and decide to communicate with people in a specific way. Consciously, not unconsciously any more.
(2) THE SECOND IMPORTANT OBSERVATION ENTAILS YOUR 3RD HOUSE OF COMMUNICATIONS, IN PISCES. How interesting to see transiting Neptune crossing over your 3rd house for many years now. No wonder you came to this life to handle/improve your communication, which seems a little blurry or dreamy, with such strong Neptune influence - natal and transit.
Hope this helps!