I want to start a dropshipping business and im trying to learn marketing before starting it. Some say that you should make an ads funnel that has 3 stages (tof,mof,bof). I will not spend a lot of money on ads at first, so would it be a good idea to spend extra money on brand awareness campaigns or engagement campaigns ? since my budget will be low at first, i won't collect enough data from these ads. Would it be a good idea to just start a conversion campaign based on a saved audience(based on demographics, interests etc)?