Honestly, a very strange and illogical novel. It started out not bad, a bit of a slow burn for my tastes, but okay.
Then it went downhill very fast. MC's sudden erratic behaviour, strange mood swings, not to mention that she acts like she's permamently 6 years old, not almost 30.
This "Daddy abandoned me, now I'm depressed" move would work if she was and original character who is actually 6 years old, but she should basically consider him a familiar stranger, since he's always at work and she was almost a grown up in her past life.
To understand what their relationship should look like, imagine you have a neighbor at home who comes from work late and with whom you just exchange few polite phrases. That's what their relationship basically should be at best, since he's a bigoted nazi who decides her life for a foreseeable future to her and she's a little brat to him.
And why would her father suddenly decide "Okay, it's been 6 years since my wife died, f*ck my daugher, let's mourn!"? Who actually does that? It doesn't work like that - he either should drop her at the beginning and grieve, or don't drop her at all, or what's the point of all those father-daugther bonding scenes? Maybe if there was conflict with a new wife or smth it would be more believable, but it's dramatic nonsense otherwise.
And the last, but not the least - what the heck is happening with story pace? It is slowburn with character development at first, and then *BAM* DRAMATIC TIMESKIP!!
Story seems not very well thought out honestly, like every chapter and plot development depend on author's current mood during writing and there's no general plan at all.