How do I add a "link" to my blog in every tumblr post I make?

[xoxo-gossip-girl]

when you write something (ex. grunge blog), highlight it and click the 8 shape next to "S" at the little toolbar. then where it says "link url" paste your tumblr url

how to gain followers:
-reblog/like a lot of people's posts (they might follow you after they see you in their notes)
-post a lot of original content and tag it with loads of (relevant) tags
-you can search up "follow for a follow" and follow people who'll follow back
-ask people for follow backs
-share your tumblr on other social media sites
-talk to people, whether its by replying, asking, or reblogging stuff and adding a comment

good luck!