If you have the opportunity, you can sit or lay down in a clear area. One without things that could fall onto you or you might jab yourself with. Loosen up clothes that fit tightly around your neck. Put a small pillow under your head, but chances are good that you would quickly lose the pillow when a tonic-clonic sz begins.

In my experience, a sz can't be "fought off". You can't control the electrical activity occurring in your brain. All that you can do is take meds, if recommended. Avoid common triggers for seizures: stress!! (work through the stress in some way, talk, exercise, play a board game...), avoid alcohol and drug use, avoid "light shows" (a very common trigger), get solid regular sleep, don't push yourself too hard (leading to hyperventilation), and eat healthy snacks & meals.

~Best wishes to you!~