You need to treat it like an actual business and not a scammy get rich quick scheme. If you use AliExpress you will get a shit product, unbranded packaging, and like 30 day delivery times or 2 weeks at best. And also dropshipping is not a long-term model or even a medium-term one, it's for testing products quickly with small budgets before investing in branded products and working with fulfilment centres/agents/distributors.
You should start but think about customer experience like delivery time, product quality, branding (no one wants to see that their product came from AliExpress), custom ads instead of using stock footage