Had the same problem with sleeplessness, you could read the first days of this journal to see how severe it was. It was so bad I had to go to the hospital because my heart could not take it anymore.

I made a decision to never fuck my sleep routine up again and to wake up at the same time everyday. For that I set 2 alarms.

I have also bought a test-set of earplugs to find good ones. Luckily I have found comfortable earplugs that block most noise.