Sir Unnecessary. It's overly formal and it excludes all our female members.
I'm very weak in comprehension skills so what do I have to do?
Welcome to the forum.
Note my corrections to your post above, marked in red. Do you have problems with reading comprehension or listening comprehension (or both)? The simple answer is that you need to practise! We look forward to answering your specific questions.
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.