There are lots of educational materials (not porn - that's unrealistic to say the least) that have been made for people in your situation.
Sex is sort of like a math class... you do the reading and learn the material, but master it in the homework afterwards. That is to say, you can come into sex as a virgin and know how to make your partner happy, but experience with that partner will allow you to make them even happier.
Just read up on some things and communicate with your partner. Then practice, practice, practice. I'm sure you can handle that.