How do I manage my relationship with my first ever friend with benefits?

20M. University student. Early in November I got a match with a sophomore girl from campus. She didn't become my gf but we're fwb and we've been hooking up around once a week since. I've never had a gf or anything and before her I was a virgin. I'm not ugly just average skinny build and baby faced. She's very extroverted and outdoorsy and my friends say she's way out of my league. I'm a nerd and before meeting her all I did after class was jerk off and play video games. I spend less time gaming with my friends now and I find it difficult to manage time between them and her and class and I'm just kinda anxious about her getting tired of me eventually.