Today I turned 73
As a trained Catholic Catechist {teacher] for nearly 30 years, I have encountered your “problem” multiple times.
Are We {Catholics to DO anything?}… YES
the BEST defense is a Good Offense
To be effective one MUST in an absolute sense know our Catholic Faith well enough to be able to explain it and even DEFEND it when called upon to do so; always with charity and clarity [FACTS]
This requires FIRST of all a good understanding of what the Catholic Bible actually says and teaches. KNOWING that JW’s DO NOT actually believe in or ACCEPT the Biblw which is WHY they have their own version called THE BOOK OF MORMONS
KNOW that while they dupliciously use the sames terms of God, Jesus,; they have a COMPLETELY DIFFERENT understanding of the terms and what they imply.
JW"S hold that Jesus was JUST a “good man” begotten by “god the father in sexual union” for example. They do NOT believe as we Do in what either heaven or Hell are and mean and have reinvented their own after-life experiences.
The Best 2 things that a “novice” Catholic [in process of still being FORMED and Educated in the Catholic Faith] can do, is in charity PROCLAIM that you are a Practicing Catholic and that you choose NOT to listen to what they have to say. Which them a good -day and good-by. [PERIOD]

… It is not a good idea for one unable to factually defend our Catholic Beliefs to engage them, as they are WELL TRAINED, in GROUPS and can be very devious.
Secondly; put yourself on a committed TRACK to learn enough to be able to explain and defend our Faith and Moral beliefs.
As a a FYI, if you have an interest in Learning WELL our Faith, contact me. I can provide several FREE options for you.
One of them is a course that I developed after I retired from face to face teaching, including 3 years of RCIA.
I OFFER A TOTALLY FREE OF ALL COST, HOME STUDY COURSE, WITH ONE LESSON MAILED EACH WEEK… BUILDING BLOCKS OF OUR CATHOLIC FAITH
I’m a Trained and experienced Catholic Catechist {teacher} with nearly 30 years of faith sharing experience. I also answer all faith related questions personally
A third thing is to have and develop a STRONG and consistent Prayer and Spiritual Life.
THANKS for reaching out, please let me know if I can of further assistance.
God BLESS YOU,
Patrick [PJM]