Severe bad short term memory loss. Life!

Im 17 and im stuck at home due to covid, I've been noticing my memory and mental health degrading rapidly with how stressful times are especially with a chronic dialysis patient with a really recent femoral neck fracture and two dogs that i have to take care of, I've been forgetting conversations that just ended up finishing seconds earlier. its not like ive not been paying attention either, i try to actively listen and pay attention and i still end up forgetting what important things they told me after a minute or two. I've hit my head pretty badly a few times about 3-4 years ago and had concussions due to me being really tall for autorickshaws. right above the forehead and top-left side towards the back a little bit. its been really affecting my relationship with my family and I don't know what to do about it. im scared it'll get even worse and adhd seems like a bad thing to go through in day to day life