After having brain surgery the hospital will likely keep you in the hospital for up to 10 days to allow you to recover somewhat after the brain surgery and to make sure there are no complications after having the brain surgery.
Your full recovery time for the brain surgery will depend on your current health as everyone has different healing and recovery times after brain surgery.
After the partial recovery of brain surgery you should still take it easy for around 6 months to the 1st year after the brain surgery.
Some people may not be fully recovered after the brain surgery until 6 to 12 months later.
So take it slow at getting back to work or any other activities because brain surgery is one of the most complicated and serious surgeries.