"Never met a stringer who fon a single match." Interesting. I assume you meant to say 'won'. That aside, you probably haven't met a lot of strings anyway, so it would make sense you haven't met a stringer that hasn't won a single (sic) match.
You're obviously new to the world of (professional) tennis, as many many lower level players do string themselves and most are actually quite capable. And since lower level players ocassionaly rise to the higher levels, I can tell you that there are Grand Slam winners that can string a racket to prof specs quite easilly.
"There wasnt any burns or dents , almost 0." That's ok, everybody has to start somewhere. You're also mentioning how fast you can string. Interesting indeed. Since gear is a big part of professional tennis (refreshing your mind for a moment that many players string themselves), you one day will find out that speed is not the most important part. Consistency however is. So it's fairly easy to digest from your post that you are a novice stringer, with little to no material knowledge, which in turn tells me you're talking a big game you ain't got. Any player with ATP points will double bagle you for lunch. Most club players probably too. I'm willing to bet that even those pesty lazy coaches can trash you into oblivion, because anyone who constantly needs to advertise to the world how good they are, you guessed it, they usually suck. Bad. (Tennisballs through a garden hose bad).
What you do have however, is an ego, large as it is fragile (much like the Djokovics' of this world) and a semi-ok troll game. Entertaining for a few minutes but badly articulated and thus painful to read, not particulary well thought out or insightful, riddled with inconsitencies and extremely predictable. A 6 minus for now, but unless you step up your game significantly, really not worthy of our time, unless it's a dull moment such as now.
Good luck on your next effort.
