How to sound proof my room?

I live in a very tiny house with a very loud family that has zero respect for me!!! My bedroom , my door, is placed right in front of the dining room kitchen area and I can’t stand the sound of everyone sitting out there until late into the night, talking and laughing as loud as they can

I can’t wear earplugs or else I would t be able to hear my alarm, I don’t have headphones that I could sleep with them on. Unless there’s some suggestions for a pair!

How do I soundproof my room otherwise? I’m looking for cheaper ways to until I can move out which that won’t be for a while yet unfortunately.

Thanks in advance!!