Hello JoyHunter. How are you? In order to maintain interest, one needs to cultivate feelings for something. Feelings can be cultivated in different ways. One way is to gain knowledge of the subject, so that it inspires. Another way, is to study in different ways which involve feelings. For example, when I teach English, I often use Song Lyrics, and even sing them for my students so that they can hear my voice pronouncing the words that they read. Perhaps you are reading some kind of an uninteresting text? A change in study habits can correct that. .

1) Make sure you won't become distracted. Turn off your TV, PC (if not needed), log out of Skype, QQ, etc. Try to find a place alone or if not possible let people know you don't want to be disturbed. 2) Reward yourself with things you do want to do but be strict on yourself and make sure you do your studying first. 3) Set yourself realistic targets. Tell yourself that you will do something for 30 minutes or an hour or perhaps read a whole chapter, etc. 4) Do little amounts often instead of lots a little. This will not only help you remember more but will make it easier to study, especially if you reward yourself between each session.