Preparing for sex?

I am a virgin and I am dating someone that I want to be intimate with eventually. What are some ways I can “prepare” to have sex? I mean I have some insecurities about my body and I want to make sure I know how to communicate what I like, don’t like, am uncomfortable with, etc. I’ve been using this app a lot lately to ask questions which has helped and I’ve done mirror work to overcome a lot of my body insecurities (learned about this from the goop podcast with gwyneth Paltrow). Is there anything else I can be doing to feel more ready?