Tbh, take a different route. Being a media buyer is not as lucrative as it used to be. All of the ad platforms are leaning more and more into ai / automation. My guess is within the next 5-10 years media buying will become relatively obsolete. In other words, what may have taken 10 buyers to accomplish in 2017 would only take 1 buyer in 2029 / 2034 and the perceived value of that position will most likely be significantly lower.

Either start your own business, choose a different industry, or get into the creative side of marketing