How do I strengthen my faith

To put it simply, I am currently on the path to joining the Catholic Church.
I believe it is more likely than not that God exists. However, while I feel I am on the right path, there is sometimes a seed of doubt lingering in the back of my mind. I understand that the journey to complete faith is long and difficult, but I wish there were a clearer process for strengthening it.

What practices have you found helpful for strengthening your faith? Thank you.