I hear you. It's not very easy to start up. But once you do you start to get the hang of it.
I'm currently stuck trying to run my 5k training app. I'm at a 3 minute run then a 4 minute run another 4 minute run then a 3 minute. Those 4 minute runs are hard to do. But once I get used to it I'll move on to the next step.

You just have to get up and go do it. If you don't you never will.