A good relationship with a good sex life starts with you being good friends. And you have all the time in the world.
Don't let your friends pressure you into anything. It's better if you talk about sex with your boyfriend or girlfriend. Because it' s personal and it's between the two of you. It may be months before you're ready. Sex is not just something you experience with your body. A lot of it also goes on in your head when you have sex or when you think about it. Sex has a lot to do with feelings.
Take your time and discover your sexuality together.
What happens if I die now?
This thought might plague you if you have a serious heart defect and want to sleep with someone. But it really doesn't make any difference whether you were born with a heart defect or not - except perhaps for a little bit of fear of what happens during orgasm. If you can walk fast for 300 to 400 meters in flat terrain and then climb two flights of stairs - you can have sex.
This is the answer that cardiologists give when young people ask them this question.
Your heart will not stop beating.