had 4 bids and went 4-3 @ the TOC so not the best but i can still give some advice:
I echo learning how to read a K that doesn't require too much case engagement (I'm going to disagree with a total lack of case engagement because your K should be such that you can have embedded case defense or turns utilizing the theory of the K) or a process CP that solves affs on the topic. Bigger schools will have more up-to-date and specific ev esp on the case debate as the year progresses, so it might become difficult to keep up on that level.
You also should try to read a smaller aff that no links a lot of topic DA's or a K aff because you'll be more prepared to defend a smaller subset of literature which evens out ground but is also just generally strategic.
Also learn creative aspects to your strategies, don't just deploy them in the way that robotic teams are used to answering. For example, my partner and I read an Orientalism K last year on the China topic that took a performative aspect surrounding debate and community building alongside the traditional reading of the K. It's hard to grasp at first, but it's equally hard for your opponents to grasp and you're at an advantage having prepped it beforehand. Being creative can go a long way, ie the arg we're rumored to have beaten Peninsula TW on was "line by line is racist" altho that wasn't necessarily it, but the strategic possibilities for creatively developing and executing args is endless and will help you so much.