Struggling with ADHD and afraid to tell my mom

Hi I'm Anthony (He/They) I'm 11 years old, I'm young ik, but I downloaded this app to talk about my conditions, here I go! I haven't been diagnosed yet, but I think I have ADHD, I really forgetful, I have trouble focusing, I have difficulty sitting still, I'm really disorganized, I talk to much, I'm careless alot, I day dream, I get angry easy, sometimes I don't want to talk to others, I get angry when sometimes doesn't go the way I plan. I'm too scared to tell my mom. My mom yells at me when I forget to take a shower do basic things, she started this new rule to wear slippers around the house and when I can't remember it, she yells at me. I zone off in class alot. I have a ton of papers in my locker, and something doesn't go the way I plan, I get mad. I cannot sit still, I change positions 24/7. I get F's on everything and then just act like it doesn't exist. whenever I'm in a conversation, I talk to much so I'm like 70% of the conversation. I don't want to talk to others sometimes, which ends with me ghosting them. I hate it! I HATE IT SO MUCH. I WISH IT WOULD JUST GO AWAY.