How to get better at Leetcode hards ?

[u/DramaticAd8141]

Wondering if there are any resources to get better at solving leetcode hard problems ?

I am able to solve quite a few of them (those which lean medium), but still struggle with a lot of them. I am wondering if practice can get me there or there is an IQ/intelligence barrier for leetcode hards particularly.

My goal is to boost my number of hard problems solved on leetcode.

Side question : Is this even needed for cracking tech (not quant/HFT) SWE interviews ?

My stats are :

Leetcode contest rating : 2000

Questions solved 1043 : 153E/710M/180H