my phone is dying

this summer just past, i commented to my mum that i dread the day i have to change my phone as there are too many models with too many functions, and well basically far too many to choose from. i would have problems trying to decide which brand to go with, let alone which model within that brand.

just as my luck would have it, i think my phone is on the verge of death. it kept lagging today, images wouldn't come up, it hangs, the screen comes up with blurred lines.

oh dear god... help me.