So you got her number. Congratulations" Now you just have to overcome a couple of hurdles and you will finally have a girlfriend. Then you can just sit back and enjoy your life with her. But wait! Is it really this easy? Let's take a couple of steps back.
So you got her number, now what? She obviously saw something in you, otherwise she wouldn't have given it to you that easily. But there is still a lot you should do. First you should send her the first message. Do you know how to do that?
The first message is in a lot of aspects the most important one. Because if she won't answer to that, then most likely she won't answer to the next ones either. That's why you need to make the first memorable. The easiest way to do that is to just send her something funny, something that basically forces her to answer.
If you have figured that out and she already answered you back, you should move forward from there. The best thing you can do is to start a small banter with her. This back and forth will create some friction between the two of you but that's actually a good thing because it leads to attraction.
Teasing her through messages will also work, but be careful and don't overdo it. But if you do the teasing part right, she will definitely feel attraction towards you. Now, this is where you two also set up a time for the first date. On it, you should keep your fun and teasing going and you might even get a second one.
After that, it's going to go pretty straightforward. Then, all you have to do, is to make her your girlfriend and you fulfilled your dream.