Use the multi-quote here when replying to many people at once; it's good etiquette and a forum rule.
As for your question. Look at the reality and think of the reality. What makes you so special that you should grow by x or y amount? How did other people do it before you? Do you have already a research spreadshirt with 100 of your competition and instprations, and have you examined them carefully. I find that for many questions on bhw its pointless asking, becuiase with correct work (something that noobs avoid) you can learn more than anyone aver going to tell you.
I would take a multi progned approach to social media, discussions, videos images, share the lot,a dn share lots of it from different angles, make something new each time. Before I started joining in and learning to market on reddit, I spent months just reading posts, and watching for trends and learning. I don't have my software that I'm working on ready yet, but I know the time comes there is no way I will be spamming, I'll be placing carefully marketed memes, and screen shot shots and previews etc, and making them engaging. If you really engage with people that's the blackest hat method of all. Talking to people like they really matter to you, and providing them with a service that they love. Thats as black hat as you can get. Hardly anyone has the skills to do that really. Everyone looking for automation!