it should telling her how much u care about her, wish her a good luck, tell her that u'll always be there for her, ask her to chase her dreams and to never fall and even if she would fall tell her you would hold her and support her to stop her from falling and touching the ground when she falls. dont make it into a love poem,just tell her that you will always be there for her and wish her luck but u can mention ur love for her...just once.
