Hello, I'm just trying out lumpy food as well, for about a week now, and after a similar start to yours its going really well now! Previously I made all of my DD's food in the blender, but now with softer fruits, such as banana, apple, pear, mango etc, I mash them with a fork instead, or just give them 5 seconds in the blender instead of pureeing them completely. At first she looked at me like I was EVIL, and I felt guilty, but I kept going - I think the trick is to use her favourite well tested foods to make lumpy first, and now its going great with her and she doesnt mind the lumps at all. What I have also been doing is using baby biscuits - here they are called Liga First Step, and they are designed to be the first step on the way to proper unpureed food. You crumble them into your LO's dinner and they become mashy lumps that your child can easily handle. At first you crumble them very finely, but then you can add bigger lumps and then bigger lumps until your baby is ready for the next step.
Just keep going, and be very encouraging and calm and your baby will accept the lumpier food. Good luck! xx