Sometimes small, sometimes big 🔼🔽🔼

Don't get me wrong, this is not about combining a hashtag like #f and #dasisteinunfassbarlangerhashtag, no, it's about using hashtags that not everyone bangs under their posts.
The hashtag #picoftheday, with around 600M posts, simply has too much competition for you to be found under that hashtag or end up on the Discover page.
The optimal mix makes the difference: Use small, medium and large hashtags to optimise your reach.
Fresh hashtags ###
Have you saved your hashtags in a note and just copy and paste them under every post? If so, don't do that now!
The Instagram algorithm can expose this as spam because it is not a hashtag customised for the post. So it's really better to come up with new hashtags for every post.
A good example is: I'm currently #shopping in #cologne. What's your favourite place to go shopping?