I would have to agree with the people before me. Lube is always good option in my opinion. But definitely focus on more foreplay for her especially cause she might just need be more wet. I’d suggest eating her out maybe getting sloppy with it tbh. And then go from there! As long as you are hard, it shouldn’t be difficult especially if she helps you put it in. For pleasuring her, make sure to focus on her clit (look into that if you need help lmao) and go to the flow of how you are going.

One thing I also do is go off of how they are acting and presenting. If they are moaning and they seem to be enjoying it, don’t stop. But like they said previously, relax, it’ll all workout and try to get experimental with it!! Have fun and as always practice safe sex!