Hey there. Most people "probably even you" don't think that they can be consistent with their eating and exercise. Here's the thing, you are already consistent in many areas of life. There's also a good chance that you're more consistent with your active lifestyle than you're giving yourself credit for.
Consistency is a skill. Like all other skills it can be developed. I think the best place to start is with the things you enjoy doing. If you start where you are, you'll eventually end up exactly where it is you need to be.
If you’re wanting to build your consistency muscle at your own pace, check out The YLF Framework. If you’d prefer to have guidance from me, sign up for one of the YLF Programs.