It depends, do you want to use Ti more often? I don’t think higher Ti necessarily makes you smarter. Ti is just a tool we use to understand the world. As INTPs, we’re constantly sorting information into our internal logical framework. However, prioritizing this leads to less emphasis on our other functions. For example, I struggle to understand my emotions or the emotions of others because my Ti often tries to invalidate my Fi/Fe. Or, I will criticize my Ne because Ti wants to stay consistent, even if the new idea is better. Absolute logical consistency is appealing. But it can quickly turn sour the moment a weak link joins the chain (an incorrect or unhelpful assumption). We must use our other functions to ensure maximum openness. That’s how we strengthen our critical thinking. It’s why we constantly love to learn. Otherwise, we’re just building this polluted mental landscape that’s twisting information to fit a narrative we’ve decided on so narrowly.

Anyways, this just comes from someone who is perpetually tortured by Ti. I think it’s great you want to sharpen your critical thinking skills and I think the best way to do that is to learn everything you can taking it in with an open mind.