sometimes there are distractions from a person that cause him not to be ” into learning” and therefore he wont develop a cheishek to learn,
I dont know you personally, or your matziv , and your age definetly plays a factor
In order to develop a cheishek to learn one has to learn (as your rebbi quoted from the chofetz chaim) even when he has no cheishek because if he really puts himself out to it it will eventully come, but it wont come easy, but when it comes you will appreiciated alot more.
Lets be clear. a person can want to learn, that doesnt mean he has no yezter hora telling him not to.