How to get internet in my room?

[mak quack]

Hello! My internet has recently got a lot worse, I had good internet until about 4 days ago. My room is down stairs and the router is up stairs. Any where out side or my room has fabulous internet but I can't google anything or even watch Netflix in my room. My brothers, sisters and parents have no problem only I do. If I moved the router around would it help? If not what could I do that would help me right away. Thank you in advance!

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Moving it somewhere else might help...