"I can't get myself motivated enough to do it."
You just said you cannot do it, so you will not do it. Until you believe that you can do it, you will not do it. Either it is not important enough to you for you to commit to doing this, or you do not believe that you can do it. We can do anything that we commit ourselves whole-heartedly to doing. As far as levels of commitment, I think you are at the Hoping & Wishing that things were different, or maybe Committed Unless... Do you care enough about your health and
fitness that you would commit Today (right now) to be Committed Whatever It Takes?