Re: Simple Past or Past Perfect for describing "first time" experience
We've had discussions about this before. If I remember rightly, there is a definite BrE vs AmE difference.
In BrE, we would say "This is the first time I have [ever] done this", "That was the first time I had [ever] done that".
In AmE, however, I believe they favour "This is the first time I did this", "That was the first time I did that".
The BrE version doesn't imply anything at all as to whether the person won't do the action again or will continue to do it. An AmE speaker will have to say whether the AmE has any such implication.
Remember - correct capitalisation, punctuation and spacing make posts much easier to read.