Looking at your previous posts, I see you have a Goodrich Volume pedal and a Carter 10 string pedal steel. Re the problem with your volume pedal, changing the pot and getting the string to work properly over the full range can be a bit of a challenge. This guide from Greg Cutshaw is very helpful.
https://www.gregcutshaw.com/Goodrich%20120%20Pot/Goodrich%20120%20Pot.htmlI presume you used a Dunlop replacement. The pot is logarithmic, which means the resistance over the pot travel is not linear. So as you rotate the pot the resistance increases in a logarithmic fashion over the travel. So the rate of volume change will vary over the travel. I would check with Greg's guide that you have wired it correctly, but it may just be that the volume change is working correctly and you are expecting the change to be the same amount over the whole travel of the pedal, (linear), whereas as it is logarithmic, it will change at different rates over the whole travel of the pedal. Sorry if this is confusing, it's difficult to describe other than in electrical terms.
I would check the wiring first, and also check that you have the string set up as in the guide.
Reverb and delay make a big difference to the quality of the sound, however use it sparingly to get the best results. Too much reverb can sound like you are playing in a cavern, too much delay and it muddies the sound. Just a touch of room reverb works best, with a short delay time on your delay pedal, with one or two repeats.
When I started it sounded crap, and a lot of that has to do with technique. As you progress, it will start to sound better.
Have you stopped playing it through your amp? What is the make/model of your amp? Some amps work better with pedal steel than others.