Re: what should i do with this girl from instagram??
Like Magnum said, asking her to do stuff every day was a bit excessive. I think that's what broke you. She dropped the ultimate test by backing off and you failed it by continuously trying to pursue her. This translates to her that you are needy, and she doesn't want anybody who is needy.
The photo of the other guy is probably both just show and tell and to tell you off. She might be doing that to show that she's going after other guys, and they win over you. It's painful to think about, but it's just the way it is.
I would disagree with posting a ton of pictures of you with multiple girls. You have to be careful about that, because other people are going to see that and immediately view you as a player. When this happens, it severely cuts down on your ability to game those people. You're way better off posting pictures of you with your friends or doing things that you love to do. Those will display just as much value without the consequence of telling everybody that you're bringing it around town.
"There is no better than adversity. Every defeat, every heartbreak, every loss, contains its own seed, its own lesson on how to improve your performance the next time." - Malcolm X