I need a larger penis. what can i do?

Use what you've got: There are no real treatments or surgeries that will actually make an adult penis bigger, and for the most part, size really doesn't matter when it comes to satisfying your partner. Talk with your partner to learn about what they want & enjoy most. If you're still not sure, if the conversations aren't going well, or if you want more detailed help, consider consulting sea professional sex therapist.