Just take an online test they are not totally accurate but they hit the ballpark...you can also buy paper copies of like Stanford Binet if you want something more accurate...I seriously doubt it's low just given interacting with you but it's also not a good indicator of success...the woman with the highest iq just runs an advice column and it's I think like 205 and it's not like she's doing theoretical physics or anything...

Ok so I deleted your quote since you did but I'm still responding....