Different methods work out for different people.
Yes, i agreed girlfriend is not a miracle pill for motivation, but
as by means of last resort, whereby you just gave up everything, at
least girlfriend could be by your side, at least someone to help
you out, listen to you, giving you a hug to find hope again.
For me, it wasn't really my girlfriend, but at least she was
someone close to me, perhaps a potential girlfriend, we ended up
studying together as partners. Work hard together for our
goals.