You can't be afraid of your growing feelings about someone. This is a new type of experience for you, so it is natural to feel some anxiety, but this is all good. Just give yourself the time you think you will need to process what is going on in your life, and things will turn out well. It's important to have honest communication, so state what you want clearly, and do not blur your message with too much hemming and hawing.
Your birth chart is a map of the sky at the moment you were born. Download the Sun Signs app to find out how the planets’ positions influence your life.