Google Ads Expert Needed for Romanian Mobile Top-Up Website (Sales & Conversion Optimization)

I have a mobile top-up website that sells prepaid phone recharges for Romanian mobile operators. The website is already completed and ready to receive orders. I want to launch Google Ads campaigns and determine whether this business model is profitable... (Budget: $30 - $250 USD, Jobs: Advertising, Conversion Rate Optimization, Google Ads, Google Adwords, Google Analytics, Internet Marketing, Keyword Research, Market Analysis)