Feel like you haven't quite found your footing in the bedroom yet? Join the club. Exploring sex and sexuality is a lifelong process; it's impossible to ever have it all figured out , especially right out of the gate. It's also hard to feel confident about something shiny and new, whatever it is, especially something as complex and loaded as sex. Those who act like they know everything don't. Some people might have more sexual experience under their belt than others, but that doesn't mean they know everything. Nobody does. Sex is different for everyone, and everyone has different preferences. There's no way to be universally "good" at sex, or to know all there is to know about it. There is no strategy or set of skills bound to blow away any partner you'll ever have in your life.
The thing most likely to give your sex life a boost -- and to help you feel boosted in it and your own sexual self -- is confidence: feeling strong and positive about whatever you're doing, however you're doing it, what you may look like while you're doing it, and who you're doing it with.