wsw1993x --
Welcome to the Forum !
Is this the product you have ?? ---
https://www.autopia-carcare.com/meg-m-0916.html#.W3O1bc7Fj3g
If so, notice the scale on the left side of the bottle - it says the "cut" of this polish is 3 out of 10, so that means it is not going to be able to correct some things in most paintwork like what you have in yours..
You need something that has a higher number on that scale, that will be able to get all or most of those deeper defects out.. If you want to stay in the same brand "family", then this Meguiars product is easy to get --
https://www.autopia-carcare.com/meguiars-ultimate-compound.html#.W3O4zs7Fj3h
If you can send us the best pic you can take of that panel, it would help.. If not, that`s ok too..
I have had very limited success with anything C/Guys sells for paint correction..
It will also help if you can get as much -
pad rotation - as possible from your Random Orbital - which one do you have ??
If you want to do this more efficiently, I would recommend getting a 5" backing plate and pads for that backing plate.. The smaller diameter backing plate and pad will rotate easier than that big one you have and will be able to get into tighter places easier as well..
If you cannot get these or do not want to, that`s ok, you can work with what you have.. It will just take longer and be harder to get that big pad into tight places..
You need at least 6 pads for correction and perhaps the same number for polishing after the correction phase.. They will be different colored pads..
You also need a good pad cleaner for those pads so you can wash them, get them to dry, and be able to use them again and again..
Also for your beautiful black paintwork, you need to have good microfiber towels if possible that will wipe it clean and not induce extra micro scratches or marring into the paint work, and of course, they need to be cleaned carefully and dried carefully so they will keep working efficiently and safely..
Dan F