Your level of motivation affects your chance of succeeding in your studies because academic success is a combination of skill and will. That is, what you know and how you apply yourself. This means the more motivated you are, the better you'll apply yourself.

Thinking positively such as  thinking about success and forming mental image about success outcome is very helpful , also writing your goals helps you to commit to them , and finally make smart plan to achieve your goals . 
 

If you have any advice I will be happy to know it ...