Im preety sure all or most gurls have had this problem before. I know i did! I tried many different brands and I ended sticking with "MAC" I like it because it never clumps up and its easy to wash off. You should give it a try
well my all-time favorite is Dior show....but that can be pricey...Also, I've noticed the ones you have tried are more for volume-these could be more prone to clumping than a lengthening mascara. (Dior Show provides fantastic volume as well as length)