You should not play soccer anymore unless you can be disciplined to not head the ball. Heading the soccer ball has been know to cause brain injury since research done in the 1970's. And, stay out of the goalie box during corner kicks. The risks during a corner kick are high.
I had to give up soccer so I started training as a distance runner and did quite well. The endurance conditioning from soccer practice enabled me to quickly become a champion distance runner.
Besides, girls soccer during the late teen years can get quite violent. My niece was on the Olympic development squad and quit to avoid the injuries caused by the violent play.
You have plenty to look forward to without putting your brain at risk again.
My best to you.
Mark in Idaho
58 years old, retired due to disability, married 33 years, father of three, grandfather of four, Suffered a serious concussion at 10 years old (1965) stopped most driving after last concussion at 46 years old (2001), Post Concussion Syndrome/Multiple Concussion/Impact Syndrome with PTSD, immediate and short term visual and auditory memory problems, slowed processing speed, visual and auditory processing difficulties, insomnia, absence seizures, OCD, 14 concussions since first concussion at 8 years old, Taking paroxetine and gabapentin for 12 years. Added L-Tryptophan and reduced paroxetine by half 3/2013
"Be Still and Know That I am God" Psalm 46:10