Unless you started trying to date people when you were a newborn, it probably hasn't been 29 years that you've been coping with this problem. And anyway, it isn't for the sake of getting a girlfriend that you would do any of these things, right? Better to do them for yourself so that you actually become someone who you like regardless of whether or not anyone dates you, since whether you're part of a couple or not, the one person who you'll be spending 100% of your life with is yourself. So you cultivate your own interests not as an attempt to ignore some problem, but because it's good and healthy to do, and as a bonus it gets you to stop being hyper-focused on your relationship status as though you've got to 'solve' that before you can do anything else (if it helps in your romantic life, great, but that's essentially a bonus on top of becoming a better person). Besides, women, if they themselves have been on the dating circuit long enough, can usually tell when a guy is putting on a front or otherwise attempting to manufacture interests for the sake of presenting himself as something he's not, and nobody likes entrapment.