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It's a little more complicated than that, I would recommend the following videos to get a little more insight:
PBS Space Time for a good description: https://www.youtube.com/watch?v=G0Q4UAiKacw Veritasium also has a fine more simplified description: https://www.youtube.com/watch?v=Ztc6QPNUqls
In the end you would need to do the math to really get a deeper understanding of what's going on. There's a lot of handwaving and analogies in popular science explanations, that isn't the full or real story, just a way to get the gist of things.
I would also stay away from the whole concept of gravitons, our best understanding right now is that gravity is due to the shape of spacetime and thus isn't a traditional force and has therefor no carrier. There is no such thing as a graviton as far as we know it (except for sci-fi where they are the carrier for the plot in many cases).