How to tell my crush i have feelings for her in a valentines card?

So I'm planning in telling my crush i have feelings for her over a valentines card. Im nervous because ive known her since my freshman year and we havent really talked to each other that much until last September. I believe she shows signs she likes me because i see her looking at me when I'm not looking and one time we made eye contact and she same and looked away. We would also make jokes with each other and she would also tease me. Even one day she came up to me and put her head on my shoulder and she would ask me to walk with her to class. And i gave her a Christmas present and she hugged me twice and she texted me saying "awwwwww Cyrussss 😁😁😁😁😁😁😁😁" and saying what i wrote in her card was sweet and she said "thank you for all that you've done i couldn't have asked for a better card and present". Can someone please tell me if she has feelings for me too? And help me get confidence.