<human>: Condense the text into a few key points

I've had a string of loud neighbors (made worse by shitty apartments with no insulation) this past 18 months and I've moved three times as a result. I finally found an apartment with thick walls, which was more than I could really afford but I thought it would be worth it for the quiet. I signed a year lease (only option for the complex) which I still have nine months left on. The first three months were perfect. My neighbor was very quiet, in fact I never heard her at all. She moved out a few weeks ago and her replacement is extremely loud, even with the insulated walls. She bangs on the floor. I'm not sure what she's doing but it sounds like she's knocking over furniture or throwing stuff on the floor. I keep getting woken up by loud crashing noises. She also has a TV in the bedroom that she plays late at night. The walls do insulate it a bit but I can still hear it. 

My question is - how can I not let this bother me? I don't think it's at all unreasonable for her to watch TV whenever she wants so I'm not going to ask that she confine it to the living room. I wear earplugs ever night (and have done for the last 18 months). They just don't seem to block much noise out. I also have white noise machines that I play but once again they don't block every out. I want to know how to just not let noise bother me? Millions of people live in apartments and deal with noise and I want to as well. 

My goal is to live in a house so that I'm no longer bothered by people living above or below me but I already pay 75% of my miserly income in rent and that's still cheaper than any houses in the area. Plus with the year lease I'm stuck where I am. So any advice on how to just sleep through noise?
<bot>: how are people able to sleep through loud noise? I no longer want to feel like I can only sleep when it's silent, I want to hear my neighbors and it still not bother me, how can I do this?