I understand why people want as many Instagram followers as possible... but something that changed everything for me was learning one thing. Quality over quantity.
You want your Instagram followers to be as targeted as possible. Honestly, you can make an absolute killing with just a small, laser-targeted audience. If you're serious about growing your Instagram into a full-time income. Here's a direct link to this guide in PDF. When you learn what all the big players are doing, it's a game-changer.
Learn from the best in the industry, but also stand out from the crowd. There are tried and tested methods that always work, but you also need to find your own unique angle.