I don't like to exercise because I'm not good at it.
I know that sounds ridiculous. It sounds as crazy to me as it does to you. But I don't enjoy doing things that I'm not good at and I enjoy doing things at which I am proficient or excel.
Now there are things that I don't LOVE to do, but need to be done and I don't suck at them... so I do them. I'm hardly an expert dishwasher loader (though if sheer number of times counts for expertise), but I do that. I'm not an expert lawn mower, but I do that. There are things which I do that I don't enjoy, but I do them.
If you've known me for years, you might say I'm "indoorsy", but I don't think so. I like being outside.
I like hiking. Fishing. Camping. Playing with the dog. Swimming. Canoeing in peaceful circumstances. I enjoy them when I'm doing them (mostly) and when I'm done, but the motivation...
And just straight up exercise... the thing you should do every day... I just dread it. You could argue that I need to find something I enjoy or that I'm doing it wrong or that I just need to get over it. You might be right on all counts.
In my head, I should be able to sprint like a deer, jump up and slap a volleyball, concentrate and flip my feet over my head in a back hand spring, be an Olympian if lacking the opportunity to try out for the competition. Instead, I'm sweating, ungraceful and much slower than I'd like to be. It's not character-building, it's humiliating and annoying.
Here's the reality that I need to accept. I can't be great at everything. I can't even be good at most things. I can be gifted in the areas in which I'm gifted and then the rest is just stuff I have to do. I can't do it all. I can't read myself fit. I can't pray myself fit. I can't sleep or eat myself fit. I can't journal myself fit. I just have to get up and put one foot in front of the other, for a significant amount of time each day, a little more quickly each time.
So I put fitness goals ahead of myself. And I work toward them. Because my faith in God's love of the body won't let me neglect mine.
In the end, that's what will do it for me. I can rationalize my opinion of my body. I can ignore other people's opinions.
"Do you not know that your body is a temple of the Holy Spirit, who is in you, whom you have received from God? You are not your own; you were bought at a price. Therefore honor God with your body," 1 Corinthians 6:19-20
That, I can't ignore.