No, I don't struggle with my sexuality, so I don't know how to answer your question, but--

Have you tried experimenting? A lot of people experiment because they're unsure of their sexuality. Nothing wrong with experimentation.

I've never experimented before, as I've more or less always "known" I was straight, but there's nothing wrong with not knowing. Not everyone knows. Part of life is about figuring out who you are. And if you do experiment, you'll probably figure out very quickly what feels "right" and what doesn't.