First time going to the track. Any advice?

Date and use online weather apps to chart out the weather each time you go and write it on each slip. This way you will get an idea if the changes you did between track trips helped or hurt. I always try to circle my pass on each slip so I can quickly check 60 foot time, 330 times, 1/8 mile times, etc. log books are cheap and available from Summit or jegs. You can never make to many notes in your records. I even try to track the wind.