I don’t know what to do anymore

Eve

so almost 2 years ago my mom past away, and right when it happened i didn’t really let myself feel anything. i cried, obviously, but i feel like i never let myself grieve. she died on a Saturday and the Monday after it happened i was already back at school. school ended like 1-2 weeks afterwards and i went on vacation, then right after we went to the beach. then school started. idk, it’s just been hitting me hard lately. i just started high school and i feel like i’m going to break any moment. i don’t know what to do. and to top it all off, i lost my necklace that had my moms wedding ring on it. any advice on what to do and how to handle it?