Need help from serious martial artists?

Ive been training in MMA and BJJ for 3 weeks now, but I played 4 years Football and 2 years wrestling in high school. For Christmas Im going with my girlfriend. Im going to fight her older brother for disrespecting me to her last month. He’s a Iraq vet his early 30s, 5ft8in and around 180. He was a Golden Gloves as a teenager and has a blackbelt in Judo. I’m 26, 6ft, 224lbs. What techniques should I be focusing on and use for this? I normally dont fight, but I have a good track record.

Your gonna fight your girlfriends brother. AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH OKKKKKKKKKKKKKKK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! JUST BECAUSE HE DISRESPECTED OU AHHHHHHHHHHHHHHHHHH OKKKKKKKKKKKKKKKKKKKKK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. And you have 3 weeks training whereas he is a iraqi vet and a judo blackbelt. MAN GOOD LUCK..

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