Guys, is it recommended to paint correction a brand new car that was just released from the dealer? I have a sealant and wax here. Ill apply it but the paint correction is what I cant do kaya sa shop ko ipapagawa. If ever, how can I remove the existing layer of wax granted that the dealer put one in (since ill apply sealant)

Also, how do you quickly clean a dirty windshield? For example umulan ng tanghali and umaraw and natuyo na and left those dirt. Papano sya safely lilinisin? It affects my vision kasi if Its dirty. I park in an open space in the office.

Lastly. Is my regimen ok? optiseal every 3mos then carwash every week and spray wax (meguiars) right after the wash then monthly carnauba 47S every 2mos.
Yung optiseal hindi kaya maooverlap ng existing wax?

Again, I dont have a covered garage. TIA