Can I go to a basketball club in the west?

Long story short, I did boxing, left it because I found out it’s haram, took me some time but I decided I should pick Allah over my desires. Anyways my 2 brothers play Basketball so I gave it a shot and liked it way better, and started playing it way more and planned on going to a club, I finally got my membership at a local club, but I recently came across a video on my recommendation from Skeik Assim al-Hakeem about going to a mixed (male and female) Gym, he said it’s prohibited. I then asked my little brother that goes to the Basketball club weather they teach Males and Females together, he said yes. So before cancelling my membership I want to make sure if it’s allowed if I lower my gaze and don’t interact with the females, would appreciate an answer. Jazakallahu Khairan.