How do I tell my high school crush I like her without making everything awkward

I really like this one girl who i go to our local school club with, and I want to tell her and just get it off my chest. Im not necessarily scared of her rejecting me anymore or even me asking, but im terrified of making things awkward because i have to meet and talk to her consistently multiple times a week for hours

I've thought about not telling her at all, but its all ive been able to think about for the past month (I feel like I think about her almost every hour of the day) so I dont think that's an option either

​I dont mind telling her over text or in person, but in case she doesnt have feelings for me (probably like a 70% chance) what should I do to not make it awkward?

It feels like my only 2 choices are either living with this until I graduate (im not a senior yet so its still a while) or just telling her and dealing with awkwardness for a club I care a lot about and will attend throughout this and the next year