Congratulations on converting! I hope you will have a great journey home.
I believe that as far as being introverted or extroverted there is a balance. Remember in the Gospel of Matthew that Jesus tells us to Pray with the door closed, and not be to pray in public like the hypocrites. (Read the Sermon on the Mount Matthew 5,6,7 if you haven’t yet).
However we are also called to Proclaim the Gospel to all Nations, and St. Paul tells us that he is not ashamed of the Gospel. So there is a balance.
I really can’t tell you what I do in private to express my faith because then it wouldn’t be private

but things I do in public are:
I’ll pray the Rosary with other Catholics in my College.
I’ll tell people about Catholicism (if they ask or bring it up of course!)
I will affirm said beliefs, and am not afraid to call Jesus my Lord.
However I do things in a civil matter, my friends all know about my Devout Catholicism, but they wouldn’t describe me as a “firebrand preacher” or anything like that. Know when to bring it up and know when not to.
Laus Deo