I've always had trouble believing in the existence of God.

Same here. Until now, I'm still on my path to determining what I truly believe in. I do not believe in the God that Catholics or any religions have, but I do somehow think that there's a creator of all these things, and we have yet to find out.

It always takes time.

Always, really. Success is not for those who are short-tempered. (But also, success comes with those who have the right opportunity/ privilege at the right time) It's good to witness that one teaching from church resonated in you, and you've applied it to your succeeding years. This is a great read!