No matter how alone you might feel, just remember that there will always be someone there who will support you. You might not get this from your parents but your friend or partner will always have your back. Not everyone will agree to your opinion and decision and you have to accept that since no one is perfect, we make mistakes and learn something from it. That's why sometimes it's best to make the mistake early and learn from it than not making any and feeling completely lost later on.. But it's fine because we can only control so much in our life and some are unavoidable. Just remember that you are never truly alone, even when you think you are. Your friends are one text or call away, just don't hesitate or think twice because they will always have your back.
Might as well give your important friend a yellow rose which symbolizes friendship, joy and caring. :P