I know "the internet" isn't a doctor and neither am I, but I realize that I fit all of the symptoms for someone with dyslexia when it comes to writing.

Should I take any steps about it? Should I just leave it be?

Depends how old you are, and what you do . if you are at school then seek advice from your SEN dept as it can effect your exams. if you drive a taxi and never have to write anything then why let it bother you, unless you wish to try and sort some of the issues out for personal reasons.
It depends on your need for accurate writing really.
Often half the battle is recognisixng the problem, and in writing you i assume recognize certain traits, so you know what to look out for when correcting.

Well, I don't know how old you are, but if you're in school still, tell your parents. the school will get you tested and go from there.
If you are an adult, it is highly unlikely you got through school with dyslexia without anyone noticing, but it is possible. I'm not sure exactly who to go to. Check the web or phone book I guess.