I know motivation is temporary and that hard work is what I should be doing. I have been in such a long phase of not doing hard work that I don't know how to begin. Most of my troubles are academic. I lift and exercise and am disciplined in that area of my life, but cannot translate it to studying which has the most impact on my life right now.

I study sporadically to get by with good grades, but right now I am contemplating pulling an all nighter to study for a test that I could have just put 30 minutes a day studying for. I am tired of this and want to change my habits. School is my biggest weakness, please help.