Can I rant for a second?*LONG RANT*

First I am so done being pregnant seriously. I am almost 34 weeks and I cannot wait to be done, this is my fourth pregnancy so I can't wait to be finished. Covid 19 has turned my life upside down... between being a teacher to my older two children and then buying a home moving in then self quarantining in my new home has been stressful. I only get out when I grocery shop which I know why I'm doing this. It doesn't mean that it gets less frustrating. My oldest child has asthma and I'm about to have a newborn I can't be stupid and hurt them or anyone else I come into contact with because I'm going crazy. Not to mention I am 25. Now here's the part that makes me mad, I recently took in my 18 year old brother who is still in high school. Because my mother is a pos, long story its bs I'm so mad about it. So I might just be pregnant and hormonal honestly but everything he does is going through me. Taking over my house, literally eating all of my fast food I make for lunches for the kids and wont eat anything I make at all. Disrespectful and he is bumming off of us. I dont expect him to pay me money I do expect him to follow the very small rules I have for him truthfully. I dont ask for much, clean up after yourself, dont eat all the damn pizza rolls when I made a 5 course meal... all of it. That an respect that it's my home that I am letting you live in. Its probably a combination of everything honestly. I have to push him to get his school work done, so he graduates... I want to scream at my mother over this. But I wont. I'm in a ranty mood right now but I feel I'm so flustered because of all of this bs. I feel like I have so much on me right now. Also because of covid 19 my money is tight it's mostly Bill's and everything which of course need to be paid no doubt and we are lucky to have what we have but taking care of another child/adult is also draining us...