When a girl cares for you as a mother does and fights with you as a sibling does. She is a keepsake. Do not dare lose her. Here are few more keepsake tips:
SHE BELIEVES IN YOU THAT YOU CAN ACHIEVE YOUR GOAL
She will be the one who knows that you are imperfect and accepts you in that way but also wants you to be the best version of yourself and is very happy to see you do well and improve in your life to be a good person.
SHE SUPPORTS YOU WITH YOUR DECISIONS
She will always have trust in you and will always back you with your decisions even if some are against you and she will support you even if she has to make some compromises with her own stuff.