in very first you need to decide what is your niche. This will helps people to learn about a single topic will a single page and also you can easily get your target audiences.
2. Content
Don't post a random content which mean don't post a content without your niche. Post only what people are searching in your niche.
3. Hashtags
use 30 hashtags that related to your content. Hashtag play a big role so don't skip it. Use online tools to generate hashtags.