How did you fix this it keeps happening to me and can't not figure it out?
While I'm not the OP, I can tell you how I do it. You need to have a few polishes & pads on hand of various levels of aggressiveness. Ideally, you want a few different brands, both DAT & SMAT. However, I know that it isn't realistic for everyone to spend hundreds of dollars just on pads and polishes.
So, what I would do is pick a line of polishes that use quality and proven abrasive technology, a line of polishes where there isn't like 40 different choices. Examples are Optimum, Wolfgang, or Rupes (if you have a Rupes). Then, pick 3 different types of pads from the same line: cutting, polishing, and finishing. Get a few of each type.
Now, and this is quite important. You have to be able to SEE the defects to SEE if you are correcting them. Since most dudes don't have Paul Dalton's light set-up, a sunny day is mandatory. Do a test spot, masking off an area. Polish with the least aggressive method first (within reason) and view your results in the SUN.
*** I can not stress how important it is to be able to see what you are trying to fix. If you can't see it while / or immediately after you are working - you will have no idea if you corrected the defects and may waste a whole lot of time polishing, but achieving little or nothing.
This is the only real way for the average guy to check their work. It can look great in the garage, but many have pulled the car out of the garage only to see flaws they couldn't see in the garage. Nothing is more frustrating than doing it twice. Ask me how I know...
Then you have to figure out if you:
A. Did it perfect -Yeah! Your a detailing guru.
B. "Under polished" - not aggressive enough
C. "Over polished" - too aggressive, or a finishing polishing step is needed.
They are usually your only 3 results. Either the defects weren't removed, the surface has hazing/micro-marring from aggressive polishing, or the surface looks close to perfect. Once you figure out which of the 2 "problem possibilities" you have, adjust your product/technique from there.
That's how I do it anyway.