How to avoid drifting from God

Just watched a video posted by "The Bible" on facebook... it's entitled as this post is. Key verse: I am the vine; you are the branches. If a man remains in Me and I in him, he will bear much fruit; apart from Me you can do nothing - John 15:5

It's true that apart from Him we can do nothing... The dude in the video described how sometimes we're like a balloon which is all puffed up and the huge words are displayed - Smile :) Jesus loves you. Thing is, sometimes when we are deflated, the balloon just becomes that small crummy piece of rubber, the words shrink too and the words - Smile :) Jesus loves you becomes so shrivelled up that it becomes unnoticable. The truth still remains, but it just becomes so small in our sight that we forget about Him. We forget our God and we drift away...

Apart from Him, I can do nothing. It's a gentle reminder that even in this exam period, as things start to get stressful once again, I'll have to remain in Him if I ever wish to accomplish anything in the exams... or even in this study period for the matter.