To get the most out of Facebook ads, it's recommended to either start again with a new account or keep your current one up-to-date and secure. Ads targeting the US from Europe won't be an issue, but you'll have to adjust your settings accordingly. You should definitely set up a Facebook page for your company and use it to advertise. This will provide you greater control and establish your trustworthiness. Getting the hang of the Ads Manager will make the time spent setting up the ads much more bearable, particularly when it comes to identifying audiences, budgets, and placements. Begin with a modest goal, try out a few alternatives, and make adjustments as you go.