Chihuahua Hates Me ? HELP NEEDED

by DaJanae
(Fairfield,Ca)

I have an Chihuahua, I am his primary care provider, I give him food and water daily, bathe him, give him is flea treatment, clean after his pee/poop daily and let him in and out the house and am usually the only one who takes him on walks. I am also the only one that trained him and every command he knows is from my training.I am the oldest of my parents kids, in our home there's my mom and dad, younger sister(14) and twin brother. They rarely and only interact with him when they feel like it to give him a treat or pet him, which is usually a few times a week. On the other hand they don't clean after him and claim they don't have time to nor want to, they only interact with the dog when they want and rarely clean after him or care for him unless I beg them to. He is aggressive towards me, has bitten me multiple times, once his bite was deep and left a scar and after that bite I felt nauseous and dizzy and got sick. His bites have tore my skin and drawn blood. I am stressed and overwhelmed as I am blamed for everything he does wrong. He has began to ignore his commands and I spend ages getting him in his crate and have to chase after him or bribe him into his crate(placed in crate when I leave sometimes). This takes between 10-15 minutes. He has also been peeing in he house. He is two years old. He licks over everyone else in the house and is good with them but has began to growl, nip, ignore and bite at me. He seems close to my younger sister and am aware he is protective of he. I have tried several training tips and spent time investing in seeking professional advice about his behavior towards me. No one in the house seems to care to address the issue. I am a college student whom works part time, in the past I was diagnosed with depression and anxiety. Perhaps the dog picks up on my usually being more stressed/anxious than the others or I went wrong with training as a pup?I only approach him when we're both calm and relaxed. I took him to the vet and he is healthy and has no physical illness. I thought I would have a loving companion, I have few friends so I was excited when my mom brought home the dog, but he seems to love everyone but me, his primary caregiver.