String theory

I don't believe in string theory, the whole things just doesn't make sense to me logically. I don't believe that everything in the universe comes down to little vibrating strings. They can only prove it mathematically and thats not enough for me to believe. The video said that it could just a philosophy because its so hard to prove. 

Einstein's space fabric is not easy to grasp but its believable and I also think gravity does not act instantaneously over any amount of distance.