Puppy is too hyper & I feel like she doesn’t want me around

I live with my mum in a ground floor apartment with a garden. Had my puppy Kaia, a rescue no breed pup for 3 months now. She is 5 months old and I am mentally reaching rock bottom.

We are doing training and closely working with the guy. Kaia listens to him straight away, however when it's just me, her and mum, she most often bites us.

So to give you an idea of my day, she sleeps with me (which I want long term), we wake up anytime between 7:30-9, I take her out for 15 mins or so, for potty, then she stays closed in a heated balcony where she has her water, food and bed.

I start work at 11 but just before I spend some time training and try and go for potty again, , maybe 10 – 20 mins, then she either sleeps on my bed while I work or if shes hyper which happens 50% of the time I have to put her in balcony.

At 3, I take my lunch and I take her out for potty in the garden, and thats where it starts. I try and spend quality time with her, but she doesnt want to play, I try redirecting her the way the trainer showed me/ how I saw on youtube but she will just go for my hands, hair, etc.

Back in the balcony til 7pm when i finish. Food, potty, then I would like her to spend time in the living room with us but she just either bites, jumps on the table, pulls wallpaper, floor wood etc. Moreover, she jumps on my mums HEAD as shes sitting and watching TV

She goes in the balcony no problem but I feel like its not fair on her and not the type of relationship I want with her.

Moreover when we go on walks, she doesnt even look at me, she doesnt give a f about where i am what i do… But whenever anyone approaches us she gets so happy and I can't help but wonder if she just doesn't want to be around me and I'm just overall a bad pup parent.. She will only listen when I have treats in my hand, otherwise she will either bite or ignore me.

Moreover, after 7 shell just pee everywhere with no warning

I feel so helpess.. Is it just a phase and she'll chill out later? Or are we just not compatible?

I had another dog, an angel, had her for 15 years and she never received training but was the most behaved bby ever.