Good to see a report on an actual BUG Fit list (I call it BUG Fit when it packs Jace). After seeing your list and reading your report, I think more of your performance had to do with your deck than your illness than you think. I have been entirely dedicated to the blue splash for the past weeks and it really wreaks havoc in the mid/late game. However, it concedes the early game and you pretty much cross your fingers that your opponent doesn't combo or aggro-explode in your face. It is very easy to play a threat and follow up with a Stifle/Waste + Daze/Pierce/Snare/FoW and pretty much lock us out of the game in 2-3 turns. Nic Fit is already a strong deck against any form of aggro (fast or slow), and control decks. Its traditional nemesis is combo decks. This alone is what makes it a meta predator in a sea of RUG/Maverick. When you want to include a 3rd color to that delicate balance, you have to be careful as to what you are giving up and what you are taking away.
Here are a couple of things I am very adamant about concerning BUG lists:
Top > Brainstorm,
We don't play FoW MD, we can't dig for instant answers, and we can't abuse tempo in any aggressive fashion. Drawing 3 and shuffling away your 2 worst cards is great, but it rarely allows you to put a lock on the game, then what? Sometimes you don't even have shuffling effects and it becomes considerably worst. Top allows you to continuously sculpt your top 3 cards until you find what you desire. It is impervious to Deed and gains value with every passing turn. It will allow you to
transform every single extra mana and shuffling effects into Portent.
Gifts > FoF,
This one is very simple, what is the purpose of that card? To produce insurmountable card advantage and bury your opponent in threats/disruption/answers the following turns. Gifts is a thousand times more flexible because it allows you to
tutor up 4 cards in your deck over the next 2-3 turns. The traditional Gift pile of 2X Witness effects +2 wanted cards is rarely the go-to pile and I don't recommend it. However, between the Volrath Tower combo, a couple Titans, Witness, Loam, and a few utility lands, there is a lot of GY interactions that will corner your opponent in a matter of seconds. Gift piles offer emergency answers and inevitability while FoF may offer you either, but mostly, it allows you to durdle with your deck a bit longer until you finally achieve what you want. Gifts isn't something you have to look at in a vacuum, there are cards in play, in your hand, and in your GY prior to your first Gifts, and that's what makes it a monster in a deck with so many engines.
Other comments on cards:
Stryx is a waste of time. I'd rather spent my first turns ramping and disrupting my opponent than a cantriping 1/1 Fly/DT body. Stryx has value written all over it, but it is very narrow and of poor quality in a deck with such high aspirations. I find Viridian Emissary just as good if not better. Besides, play your full playset of GSZ before even considering Stryx, the latter pales in comparison to the prior.
Jace is powerful because he is the ultimate Phyrexian Arena for us. Fatesealing into victory isn't much of an option because we have other means of winning that offer more inevitability, card advantage, and that will simply finish our opponent faster. Fatesealing into victory is horribly slow when you can't keep your opponent in check with counterspells. There is a lot of good to be said about Jace but I don't feel like I can afford the mana cost and deck space at the moment.