Scarleteen

I have a curved penis and am worried on how this will affect sex. Do you have any tips on how I can change up the sex position?

Penises come in all kinds of shapes and sizes - and yes, plenty of them are more or less curved. When you say sex position, I'm assuming you mean for intercourse? In which case, your partner's bodies will vary too, and what feels good for both of you will be up to your individual preferences - the best thing is to take it slow, keep talking to each other and adjust things like depth and angle based on your own experimentation - does that make sense?

My penis curves to the left quite a bit. I've read that anything past 30° is something that should be taken to by a doctor. What should I do? How can my partner and I find out what feels good. I want a great sex life where we both don't feel pain.

This certainly is something that you could discuss with your doctor, the next time you see them. Do you currently experience pain when you have an erection, or during masturbation?
In terms of finding out what feels good with a partner, like Siân said above the way to find that out is to take things slow and experiment with a partner. We really can't know what will work for you and any given person since everyone's body is different and will fit differently with other bodies.

I do experience slight pain. I will definitely get in touch with my doctor. Thanks.

Okay, if you're feeling pain then a checkin with your doctor is a good idea.