Sirgee very gud to join this thread welcome I am no expert but I think I can give a lil guidance
for interior get ur self meguiars quick interior detailer very gud give a rich look to the dashboard
for exterior maintance try washing with washmitts and shampoo with double bucket mmethod
double bucket method is
one bucket with shampoo and water mixed and another with only water
dip the washmitt in the shampoo bucket apply on the panel and then rinse ur washmitt in that plain water bbucket and
rinse the shampoo off via hose pipe
NOTE :MAKE SURE YOU WASH YOUR CAR IN SHADE TO AVOID WATER MARKS OR SHAMPOO DRIED UP MARKS
drying ur car dry with drying towel only dnt use 5ruppay wala kappra or else it will ruin the paint and make swirls on them
Coming to waxing your car ,I will suggest gold class or ultimate wax it wil give very nice depth
,apply wax with applicator and wax removal should be from microfibre buffing cloth 
now get yourself meguiars new car kit
it will have the following stuff
Washmitt
shampoo
dryingtowel
liquid wax
Tyre gel (tyre dressing)
microfibres
and 2applicator pads for waxing and tyre gel,note never wash them together and never use tyres one on ur car for waxing and interior spray u will have to buy ssepretaly
you will get all this from
Dubai autos Rawalpindi
4500 for the kit
1400 for the interior spray
tell him you are friend of ahsan he will give discount
happy detailing sir