thanks for your advice before hand ! 🙈😅

So, my boyfriend and I just started having sex. We have been dating for two years but we both wanted to wait till marriage ... didn't happen. Anyways, I have never been with anyone, he is my first. I am having trouble getting him in when I am on top. It's like when I start to push to get him in, i am not actually putting it in the right place. Thus, I end up sore and right now I saw that it is a bit hurt, red, and a tiny piece of my skin, right under the entrance is lifted, like when you scratch your skin a bit too hard. It's worth mentioning that I was really lube and we didn't go fast. I would like to ask for some advice. 1. How can we make him go inside a little bit smoother ?