Best way to get rid of inventory and closing seller account [need help]

Hi everyone,

a little background to my story: I started selling my first products around April this year, first month or so was good and fun, but as time went by, I really don’t think I chose a good product. I spent a lot of time understanding and optimizing ads and listing.
But right now I am at a point where I don’t want to continue with Amazon, and FBA inventory and PPC ad fees are just too high. I know I can spend more time to learn and try out but I just wanted to give it a shot and I really don’t have the extra time now to do this thing.

My questions are:
– what is the best way to clear unselling inventory? (I’ve tried lowering the price to the lowest possible compared to competitiors, I’ve seen ppl mention bundle selling to buyers, but I’m not sure how, if anyone knows the process, feel free to let me know)
-Or if I just want to end it once in for all and take the loss, how do I go about it?
-any other suggestions? thanks!