Need help learning Instagram Marketing and Making Money.

Hi fellow BHW members.
Recently I've started looking at Instagram marketing but have found nothing of value as mostly all YouTube video talk about F4F and those that don't, provide no good value what so ever. I'm new to this space and I would really like to learn about Instagram Marketing and how all these accounts have been able to grow so quickly and how they have been very successful in monetising them. Is there a free website or video or even a course out there that can teach me these things? I'm very much interested in growing a Instagram account and making money from it but at the moment I don't have too much money to invest. Any help would be great!
Thanks

Yes, there is a free website with a huge amount of information: you are already here. Just use the search function on the right.

If you watch Shark Tank on TV for any length of time you’ll come across a number of entrepreneurs whose entire profits came primarily from marketing on Instagram. They were seeking venture capitalists basing their valuations on net sales from all the purchases their huge audience gained on Instagram.

They always tout a huge Instagram following.
Instagram is a create way to share photos, videos and messages. One directs Instagram customers to their website where they are monetized.
Hashtags organize content which aid in the process of content discovery for you customer. You should have a crystal clear image of who your perfect prospect is.
Hashtag Ideas Only put in relevant hashtag directed at that perfect prospect (one can put up to 30 hashtags on a post). For hashtag ideas, Google: “Instagram hashtags”.

Good luck and success.