Enlighten me

I am tired of making the same mistakes over and over.
I am sick of being disappointed again and again.
I hate how I'm not trying hard enough when I know I'm suppose to. I hate how easily influenced I get.

Day by day I feel the pressure building up, yet I'm still not putting in effort. I don't know how I'm going to survive the next six months.

I constantly tell myself it's not that bad when my expectations fail me, but yet there's a part that feels demotivated by people.

The feeling of frustration, lacking inspiration, and needing motivation.. all three in one. I don't want to give up this time.
Someone enlighten me please.