OK I'm going to play the devils advocate here(and will get burnt for doing so ), after reading your rant a few times here and all the positive feed back you received there are a few honest truths that are stuck in in my throat.
You stated that you aren't old enough to drink but I'm guessing by your language aren't 10 years old either so you may know what a life lesson is....
- Entering anything at a competitive level people pull the gloves off and are there to win
- You stated you have little experience and don't get to play often, but wanted to come home with store credit, going into this your goals may have been unrealistic
- People joke around about lists and how they are played, as you seem to have been in an overly down mood this can easily be taken in a personal way that may not have been intended
- That the guy always flew his TIE defenders so he got an evade token well that's why the list is designed to do
- You actually HATE the guy, I wonder what he thinks about that and how he feels about you. Especially as they may well be here in this forum
- Maybe you need to play a list with predator in it as its a great card
- Feeling unsatisfied at Rogue One.... Personal problem and nothing to do with the tournament. Personally I Loved it, IMHO it was made for those that saw a new hope back in 77
- In a Swiss pairing there will always be one person with 0 wins, that how Swiss works. In this case it was you. Sux but thats life
I could go on but I have more important things to do, so to cut a long story short.... " You had a bad day so build a bridge and get over it "