This is not medical advice. Only something from my own experience. You might ask your Dr if a little bit of steroids would eleviate some symptoms while you explore your course of action. I hope you pursue 2nd opinions and get information about this type of tumor. Mayo Clinic and other highly skilled+ experienced medical centers sometimes review your MRI 'S by telemed.
Meanwhile, make sure you take measures so that you don't have a fall bc of balance issues. No throw rugs. Get grab bars. Solid support shoes. A cane or tripod perhaps. No pets underfoot. And just remember when reaching, etc, that you can't be impulsive bc your balance is unreliable.
As for memory, we use posted notes at home
+carried notes, and digital reminders. We keep everything in the same place all the time! Use a timer when cooking. Know you're still the same person you always were; just a little more wobbly+ forgetful. You're still OK.
Wishing you the best.
Keep reaching out for information and medical opinions.
See you here again.