Betta Fish: I never thought this would happen to me

Today started out like any other day. I woke up for work, ate breakfast, got dressed, then fed my fish. It has a cover so something like this wouldn’t happen (maybe you could see where this is going). Lifted the cover, fed, put it back. Or so I thought. I get home from work. I go immediately into my room to say hi to my fish Bookie (boo-key (lol my sister called him spookie bookie and the name just stuck)). Can’t find him in the tank. I look all around at every angle possible. Bookie isn’t in there. I notice the cover is slightly off center, which a large space in the back. I look on the ground and there he is. Ive never been so traumatized in my life. I love him so much and im absolutely devastated. In my tired state this morning I must’ve not been 100% careful about placing the cover on right. I feel like a m*rderer and I don’t know if I’ll ever recover honestly. This is all my fault. 😭 RIP. Bookie 💙 you were the best fish a girl could ask for.