Newborn help

So I officially have a 3 week old daughter and I’m a first time mom so a lot is still new to me. Right now I co sleep with her I know it’s not recommend but she screams when I put her in the bassinet at night. I tried wrapping her with my shirt so it smells like me, she doesn’t like to be swaddled and I even wait until she knocked out to put her in the bassinet and she wakes up right away. Idk what to do at this point. I also am now having trouble with her during the day she just wants to be rocked and held all day which makes me nervous when I go back to work. My mom basically said it’s my fault and I need to figure it out on my own I get it I’m an adult but I was only looking for some advice. Has anyone gone through this? Does it get better?