I'd say goto the gym. Plenty of fit single men with self-discipline there. But the question is, what are you doing? Society as pretty much put approaching women in the gym as off limits. I also never see it happening, never in the 3 years have I witnessed a stranger talking to a women. Mostly because they're wearing earmuff headphones and staring at their phone 100% of the time. God forbid there ever be eye contact. Women have pretty much lost the right to expect a man to make the first move. That first move is usually just eye contact and proximity, not asking you for your number. If you fail to reciprocate, then game over. Or, you'll have to be more aggressive.