Kyu ranks are all about drilling the basics. Kata and kihon. Being Kyokushin, there's not very many kata compared to others like Shotokan. Most Kyokushin schools do 3 Taikyoku kata, 5 Pinan, and the "mokuso kata" - Sanchin, Gekisai Dai, Yantsu, Tsuki-No, Tensho, and Saiha.
It sounds like a lot, but it's not compared to others. Some Kyokushin schools will do Pinan 5 and Saiha (along with Seiunchin) at shodan.
Those kata all contain the basics - stances, blocks, strikes, etc. They're deeper than just the basics, but that's the main focus of them at the kyu level.
There's a bit of redundancy in a lot of those kata - Taikyoku 1, 2, and Pinan 1 are quite similar in a lot of ways. Pinan 2 is quite similar to Pinan 1 in a lot of ways. It's not until you get to Pinan 3 where things get much different.
If you're training alone outside of class everyday, as you get up in rank it'll take quite some time to go through everything. If this is the case, rotate what you practice. Use some of the kata as warmup.
We start every class the same way...
Warmup exercises and stretching - front stretch kick, front kick, roundhouse kick, side kick, hook kick - basic blocks with and without punches - combinations of basic blocks and punches - more advanced hand techniques - hand and foot combinations.
When we do kata (every class), we always start with Taikyoku 1. It puts us back n the mindset of kata, and no matter how many times you've done it, there's little details you can always improve on.