All waxes have hydrophobic properties. Difference is, some last longer than others. I could never quantify gloss of one over another so I'll will not go there. Formula one may only last a couple of weeks but collinite 476 goes on for 12-16 weeks (personal experience).
You can't really fight off the dust element and will have to make your peace with it until you can do Maintenance washes daily or every other day. If you really want to invest your time and money into keeping your car clean, buy quality products which of course will cost substantially more.
If you want to invest in; strip shampoo, claybar, polish or compound, sealant and a wax, car shampoo and microfiber cloths. All of these of better quality should cost around 12-15k I assume and the breakdown is as follows. Please note that I use these products myself.
1. Mother's claybar kit - 1500-2000
2. Woflgang sealant - 3000ish
3. Meguiars goldclass car shampoo - 2000
4. Collinite 476 - 3500ish (don't know if you can buy it in Pakistan)
5. Meguiars compound n polish - I guess 1500ish each
6. Microfibers - 200-400 each
Baki kissi ko meguiars pasand ati kissi ko dodo juice kissi ko chemical guys kissi ko kuch. So it really is up to you and how much time and money you spend on trial and error. Happy detailing!