Could you be a tad more specific, to help us narrow down what we need to explain, so we don't end up info-dumping useless stuff on you?
Do you understand the mechanics of BLUPing? Do you understand the reasons why people prefer to do training, riding, and comping in certain orders? Or is it just the slang and phrasing that's not descriptive enough? More importantly, do you WANT to know any of that, or just the end results of how to BLUP?

As Avre said, specifics about what in particular is confusing might enable us to help you a bit better.

A simple KWPN blup schedule might look like:

- Forest rides
- Speed training
- Dressage training
- 25x show jumping competitions for gains & wins
- Jump training
- Mountain rides
- Trot & or XC comps if wins still needed

Remember that in order to reach 100 BLUP, a horse must have its top 3 skills bolded (you can find a horse's top 3 skills by going to the 'Genetics' tab on your horse's page), be 10 years or older, and have won 20 competitions.

I know the mechanics of BLUPing I think, I know all the requirements and such. I just dont understand how I'm supposed to get a high BLUP quickly/before my horse dies. some of my horses are 15+ years old and dont have a very high positive BLUP.

I'd just like an effective BLUP schedule so that I have a high BLUP at around 10 yrs

I dont know if its possible, but I'd like a schedule that I can do in one day. I dont know if im making much sense

When i see what the person above me said, I dont know where to start as I dont think I can fit all of those things each time my horse wakes up, unless im just managing my horses energy poorly.

To follow a guide like the one above, you'd treat each of those lines as different tasks you work on until complete. Forest rides are first, so you'd use all the horse's energy on forest rides every day until complete. Then you move on to do speed training every until that's done, and so on.

The KWPN schedule given above is to be done over your horse's first ten years of life, not over one day. You'll be about to fit 8-12 hours of training/riding in a day, depending on how much energy a half hour of training uses, or you can fit 6 competitions in a day.

When you're doing training/riding, start by doing a small amount of it to use 20-30% of your horse's energy. Then give you horse all their fodder, and 8-12 oats depending on their size. For KWPNs, 10 oats while they're younger should be suitable, and 12 oats once they're past 3 years. Then groom them, and put them to bed already if you want.
Then do as much training/riding as you can to get your horse close to 0% energy. Then stroke them, then do the remaining care (water, carrot, and mash) in any order. If they have enough energy for another half hour or hour of training, then do so.
Don't put your horse to bed with anything less than 20% energy, and no later than 22:00 in your horse's time.
Be careful when doing Dressage training, as it uses more time than energy, so you'll have to keep an eye on your horse's clock to make sure they get to bed on time.

When you're doing competitions with your horse, start the day with two competitions. Then feed them their required fodder, and 6-8 oats, also depending on your horse's size. Groom them, and put to bed already if you want. Then do four more competitions. It should be 21:00 in your horse's time, so you won't have enough time for another competition. If you have enough energy left, you can fit in 1 hour of training or riding. If your horse has less than 20% energy, then stroke it, and give it a drink and carrot as well if really needed.

Keep in mind that only feeding and grooming are necessary for your horse's health. All the other care types are optional.

Just wanted to add to the above--boarding your horse with a shower and watering trough will also help maximize the training you can get done each day. The waterer makes the water action restore more energy, while the shower reduces the energy used for training/competitions. In my experience, it's well worth boarding in an EC that offers them both if you want to BLUP as efficiently as possible.

And to add to the add-on; also try to board in an EC that's located in either a forest or mountain. The EC's location will reduce the time it takes to fully train your horse in the related riding type. ie, a Forest EC will make your horse learn their Forest rides quicker.

if you're BLUPing over the course of several IRL days, you can also put them in a Forest EC for the first few days, while you're training Forest rides, then a Mountain EC for the last few days, when you're training mountain rides, so you get the maximum benefit for both.