1) there are real, legit pro gamblers/+ev semi-pro gamblers on Twitter. they're not TOO hard to find, but they also aren't putting 30 emojis and 3 gifs after every 5u play.
2) if you haven't built a mathematical model to beat NFL sides/totals, you're pretty much dead in the water long-term. It's too big of a market, the opening line's too good already, and then the people that move that line are even better still. The days of just having a good eye and a reasonably good understanding of statistics and being able to eyeball a line are long-gone.