Hi I use ibd soakoff. Ive had no probs. When i first started doing gel i had the same prob. I was told that i was using to much bonder. I havent read all of your replys so i dont know if any1 has suggested that mayb you are using to much. When applying bonder i wipe most of it off the brush first and then apply to all 5 nails without dipping it into the bottle again. Or, apply and dab most of it off the nail before you cure.
I really feel for you, its awful when u struggle. Dont give up. I did trial and error on my own nail at home.

Hope this helps x