I have string lights in my room and my sister accidentally broke one of the bulbs. The lights are my main source of light in my room so I was wondering if I just removed the broken bulb it would all be fine but I'm worried that if plug them in something bad will happen
By string lights are you refering to something like a string of christmas lights. If this is what you mean then remove the buld and replace it. If you don't have a replacement bulb, cover the opening with tape just so nobody sticks their finger in the opening and you're good to go. Plug it in and let there be light.