In college, it was easy. You took a class, found a cute girl, sat next to her, made conversation, and asked her out if she seemed interested. Now that I've been out of college for 2 years, it seems impossible to meet someone. My schedule is pretty much the same: Wake up, go to the gym, come home and study (for the MCAT), eat, sleep... rince and repeat. There are a ton of cute girls at my church, but they often don't discuss their relationship status... so it's tough to tell if they're taken or not.
For meeting girls, try a few dating websites. After college, and after getting away from the party scene. I became a workaholic, and though I was social enough to meet a few girls. None of which were "spouse" worthy. I eventually started using dating websites, and that's where I met my wife.
Ya I didn't realize after college that it'd be much more effort to just find an attractive girl in 20s. Tons of success in gym and nightclubs for me, and just friends of friends you know. Tinder works too, based on my very very brief experience with it. But ya, clubs and gym for sure.