Yea...
Marketing is ridiculously difficult. One thing you do need to realize is that marketing is not a thing you do like for an hour. You have to start doing it the moment you've got anything to show. Make people interested by creating interesting content about your game. I am personally doing Twitter and I am also struggling big time to get people excited about my game. Do make sure you don't focus on the wrong things though! Likes & follows don't mean much and don't convert well to sales. If you've got a steam page or a itch page try getting people to visit those through your various social media accounts. Track what actions lead to the most wishlists on steam or downloads on itch. Keep experimenting and find out what actions are the best.
Good luck!