Guys, How to break up?

I've been in a relationship with this guy for two months and I'm not sure about him. I think he might not be the one and I don't want to waste time. I'm 28 and he's 30. I would feel so bad for leaving him. I really don't want to hurt him but I know that no matter how respectfully I end it, it's still gonna hurt. I'm terrified of breaking it off. He already bought a engagement ring so now I feel all this pressure. I really need advice on what to do.

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+1 y
I thought it through, and I think I'm just freaking out because things are happening so fast. My question shouldn't be how to break up, maybe how to stop freaking out about it? Maybe two months is way too soon.
Guys, How to break up?
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