Online Business Presence Manager

We are looking for someone to help develop and improve our online presence with a limited budget. Tasks to be done include developing a Shopify website, developing content for a blog, social media posts, for Facebook, Instagram, YouTube. And develop and manage Google and Facebook ads.

Which of these skills are you strongest at?
Which of these skills are you weakest at?
What projects have you managed where you were responsible for all of these skills at once?
What recommendations do you have for ensuring this project goes smoothly?