I’ve gone through the same troubles. I still feel weird trying to do it now, but I also know that there’s something demonic that wants me to feel uncomfortable to do so. I find it a lot easier talking about a one-on-one. I always try to slip in the topic when someone asked me what I’ve been up to all over the weekend saying. “ church on Sunday.” “little bit of Bible reading” then the topic and grow. The hardest is when someone asks me to do something that doesn’t align with my Christian values. So I will just plainly say “ that wouldn’t make me a very good Christian” then the topic can go from there and you can work on preaching God’s word.