FTM with a 1 year old. How did/do you guys cope with the rough transition from baby to toddler?

Im a first time mom with a 13 month old daughter. This transition is hitting me like a fucking truck and I feel like I can barely keep up. Im just constantly tired and overwhelmed and I basically dread every time my husband goes to work and Im left alone with my daughter since it means I wont get a break because no one is here to help me out.

I dont work, Im a stay at home mom so I can go to college, which means most of my time is spent either at school or always with my 1 yo. Its summer break however so Ive been home all day with my daughter the past two weeks and Im being driven insane without going to class being basically a break for me.

I felt like it was so much easier a couple months ago when she was still a baby. She was always pretty easy and happy and now it feels like all of a sudden she's this little tantrum throwing monster. Also at least when she was a baby and would take often and longer naps I could get a break and maybe even nap while she napped.

Shes started screaming whenever she throws her tantrums and it completely overstimulates me immediately (Im extremely sensitive to noise) and I end up just putting her in her crib until she calms down. Im just frustrated with her everyday and I sometimes resent my husband because at least he gets to go to work to get away from the house.

Today is rough. She took a short nap and when I went to go get her shes just impossible to deal with. I gave her milk, a pouch for a snack while I fix her an actual meal, and when I got finished putting her lunch together she was still pissed and just screaming. I figured out lately she wants to sit on my lap while being fed now or else she'll just scream and wont eat.

I tried that her tantrum still continued. I tried just holding her to calm her down she still cried and screamed. I tried putting her down, no improvement. I just gave up and put her back in her crib. She's quiet now but I dread going back in and getting her later.

Any advice? How do I deal with this? The constant screaming, crying tantrums are driving me insane. I keep telling myself that at least Im not having another kid ever again so when this phase for me its over its over, but it doesnt help much with the present feelings.