Give it a little time, once you know you've created good tones it will be better. And like mentioned previously, you have to get as close of a seal as you can get in your ears. I started with Shure 425's. I used the large foam ear pieces to get a descent seal but low end drums and bass were underwhelming. But I could hear everything better. I also added a Friedman FRFR cab behind me to move some air and compliment the low end of my sound. I spent a lot of time adjusting my sounds on my monitors. Then I would check them with headphones. Give it a day, so your ears can reset. Then go back and see how you're doing. Also make sure you adjust your output levels the same too. It also helps to use the same IR if possible from amp patch to amp patch that you intend to use at the same show. I would finally EQ my Friedman ASC12 FRFR with the output EQ of out 2 on the Fractal, to make it sound more amp like without adjusting the tone to my ears or FOH. I would switch from Monitors, to FRFR, to headphones slowly eq'ing the cab. Then finally my in ears were just the way they were, because I knew I had good consistent tones from good sources. My ears never sounded like I could use just the IEM's and be comfortable, they were really a compromise, but it lowered the stage volume and give me the clarity to sing and hear my guitar. So my cab ended up helping the most. All that being said, about a year ago I upgraded to the Shure SE846 IEM's and they are absolutely fantastic. After 8 years of the 425's I wish I would have done it sooner. Everything is better, Vocals are fuller, cleaner on top, drums sound great, you can hear bass in your ears. Obviously all of the mid world of guitar sounds great. I feel spoiled now. And I do not need my cab on stage, but I still bring it, the IEM's are so much more fuller, I don't feel uncomfortable in any way. And as the show goes on and people pour in, the house system gets louder and the ambience just adds to it and the ears are the perfect clarity. Hope this helps. Good luck! Don't give up, your ears will thank you once you get it dialed in.