Am I in the wrong?

me and my mother have a complicated relationship, mainly due to the fact she has narssasistic behaviours and chooses to remain uneducated or informed about my mental illnesses (depression, panic disorder and bulimia) leading to her constantly insulting me for my symptoms which caused a major rift in our relationship. I started medication and cognitive behaviour therapy this year so a large part of my symptoms have disappeared. The last 2 weeks however have hit me pretty hard so my symptoms started popping again as I was struggling. My car broke down for good (over 2 grand to fix which is more than it's worth) My work decided to downsize so my position in management was eliminated so they demoted me which means I'm down to part time, minimum wage, loss of benefits, ECT... Which caused me to lose approval for financing for a new vehicle leaving me carless. On top of this it meant my income was cut by over half so I had to find a new job in less than a week or I'd be unable to pay my bills very soon. needless to say my home started to get rather messy as my depression started to kick in and my priority was on finding a new job as fast as possible. so my mother shows up to my home fully well knowing I'm not there, having not said a word she was coming or been invited. proceeds to start going through my things and when I get back home starts belittling me and yelling about how messy my home is and that she thinks I'm disgusting.So I told her to leave my home. now apperently I'm the bad guy because she feels she had every right to enter my home without my permission and that asking her to leave was disrespectful. to me I dont care who it is but entering my home without even saying a word to me already crosses a line and to then insult my home afterwards is just plain rude and not okay no matter what. ***update*** she had a key for emergencies or for when she would babysit my dog if I was working long shifts. As I disliked him being alone for extended times when I've had to work doubles. thankfully today I received a job offer so thing are looking up! And the schedule there means I no longer need someone to babysit my dog on occasion which is great. I haven't lived with her for 3 years (I am 20) nor does she pay anything towards my bills. so her actions baffle me. but thanks for your understanding ❤ I am working on setting more boundaries and planning to take her key away until she is willing to learn about my illnesses and respect my boundaries. setting boundaries with a parent is scary and doesn't feel good but I know without having them it's not going to help all the effort I'm putting in to get better.