There are certain skills in Eve that you absolutely must train if you're interested in PvP. These skills are different from those that you should train, like Sharpshooter V or Trajectory Analysis V. No, there are certain skills that you absolutely must train to attain even a basic modicum of positive experience with PvP. These are the skills like Weapon Upgrades V, your capacitor, powergrid, and CPU skills, and the base shield, armor, and hull skills.
One of those is Mechanics V. "But, Tal... hull is so incredibly unimportant... if you're in structure, you're already dead!
Not so, my friends. Not so.
A lot of people have survived with 1% structure before, so this situation isn't remarkable, but rather demonstrative. That 1% means the difference between repairing to get kills later in the night and having to take the long trek home in a pod, after which you may not go back out. 1% can mean the difference between a night of fun and a boring and uneventful slog back to reship.
In Eve, we live in the spaces between one-percents. Squeeze out every bit of base hp, capacitor, CPU, powergrid, and dps you can for those skills that affect all ships equally. Your crew will thank you when they don't die in the cold vacuum of space.