From what I can see, as you are a Sagittarius each time Mercury goes retrograde may affect you with communications at work & home & career, as Mercury rules these areas of your life.
This Mercury Retrograde cycle may also affect your privacy, friendships, groups & goals.
At the moment you may feel that your intuition is not serving you well around friends & things to do with finances & you may also find yourself in a dispute over money.
At the moment, i'd say take stock & put things on hold as you may be especially sensitive to the above.
Be as non-judgmental as you can, but do keep an eye out for deceptiveness and falseness in others.