What to do when i don't understand the editorial?

Hello, codefriends, my name is Daniel and for a long time i've been thinking about what to do when I don't understand the editorial of a problem.

Let me formalize, if you is newbie, pupil or specialist(I cannot speak to any division above that) maybe you've read an editorial that you didn't understand,me to and this happens frequently for me, but I don't want it to happen anymore,so I'll explain my case.

First I would like to say that my English is very bad and that certainly influences my reading of the editorials, but in many problems i can understand exactly what the editorials are saying, but do not interpret in the context of the problem (i read but i do not understand how it works).

What I usually do is: Consolidate the reading of the code together with the reading of the editorial and this works well for many implementation, graphs and greedy problems for example,but when I find myself trying to solve math, number theory and bitwise problems using the editorial it seems like I'm reading blindfolded, I can't even understand 60% and that makes it impossible to understand the code.

That's why I want your help. What can i do to not have this defect? Is this normal for my rating? Can this happen for those who are high rating? How can I improve in math, number theory and bitwise?