At some point you have to trust yourself. Once you start second-guessing yourself and doing the opposite of what your brain tells
you to do, it's all over.
Also, you may think that you're calling because you're just "curious", but in actuality you may be hyper-sensitive to someone bluffing you out of a pot. If so, you have to get over that because it's going to happen no matter how good you are. And once other players learn that you can't lay down your cards, they'll eat you up! So it's best for your game if you really get to the heart of why you keep doing this.
Good luck to you and don't get "curious" in the middle of a hand!