How to know how many post I've edited? Is there any ability to say that in this web site?
Also, how many accepted and how many rejected?
This are a couple of pretty handy queries on Data.SE:
Punch your user ID (181205 in your case) into those and the first will tell you how many edits you have (and where you rank). The second will show you your rejected suggestions.
You're ranked 351 with 78 edits, 2 rejections.
Another way to check those stats, is to re-visit a suggested edit you already posted.
For example, you suggested this edit.
In the top, click on
(more), and you will be able to see stats about you and the reviewers.
At the moment it's
alex had 18 edit suggestions approved, and 9 edit suggestions rejected
You can reach that page by going to your profile, click on
Activity and then
Finally click on any of the
suggested edit link in the list.