Just a caution:

Kant was a philosopher. And, IMO (which I have stated before), philosophers take a lot of time to get to what they see as truths.
Other philosophers try and shoot them down.

If you take philosophy too seriously, you probably would not get out of bed in the morning, uncertain that you could philosophically do the task.

Kant wrote his stuff a time ago, and I expect many of his works have been contected, and possibly even debunked by more current philosophers, or deep thinkers. But, I cannot attest to that one way or the other. Possibly Don would know, as I suspect he would have more expertise than I in this area..