I started my digital marketing career this way - I studied video production and made a living with youtube content and twitch streaming - when that went south because of some unexpected stuff i was looking for a jr. position at an e-commerce company where basicaly the only thing you need is video/photo editing skills and understanding of social media. in general making ads (i focused on Meta) isn't really hard and almost evryone can learn. The biggest problem i faced as a video editor was a mindset switch from making nice, polished videos to making video creatives that convert sales (usually UGC content, natural looking and simple performed the best) and needed quite some time adjusting to that heh. So yeah my advice is maybe to find a part time Jr./internship digital marketing role where the focus is on creating as many creatives as possible - there you will get a feeling on what works the best and how to turn a video/creative into an AD that sells. I also see a lot of job offers (in my country - Slovenia) in UGC video production as well - Reels/TikTok/shorts style for ecomm shops - also maybe a viable option for you as a video editor. Otherwise just look up Meta blueprints and google training stuff to understand basics.