Rule Of Thumb: Place your hand (back side up) level with the top of your plant(s), below the light(s) for about a minute and if your hand gets too hot to keep it their, it's too close, if you can tolerate it, it's just right...Understand?
I think we've all burned a plant or two at some point in the past and they always recover if they are not just left there to cook.
You may want to trim off the burned ends of the leaves, with a sterile pair of scissors though. Just clean the scissors with rubbing alcohol before you trim...cool?
Don't fret brother, we were ALL novice growers at one time...LOL
As far as you thinking you may have a male LR goes? That's a good thing brother! Especially if your other one turns out to be female! You need more seeds bro...for real!
Free seeds are the best because you can just keep on planting new seeds forever when you make tons more. You can also plant as many as you want when you have a good supply of them, without spending any more money ordering new ones...That's the beauty of it!
thx for the support guys i realy apreciate it ^^ and your right warrior , i will try to trim the damaged parts of the leafes , and i will keep my male to make some more seeds ^^