Read the bottom. Is my problem Normal? What can I do to solve it?

I have difficulties sleeping when there's too much noise or even little noise at all (My partner snores softly, but I can't seem to fall asleep). Snoring, crackling noises, and clocks-They all drive me crazy when I'm trying to sleep. I even bought ear plugs, but they are unbelievably uncomfortable. However, I have noticed that I am able to fall asleep when noises do not break in rhythm (try to think of a lullaby that never stops). I talked to my mom and my problem and she told me I'm concentrating too much on the noise, but it's hard not too! What can I do?