While harder with a video, the same principles usually cross over pretty well. So me too, kind of a Photoshop kind of guy and just transpanted lots of that to make it work in Vegas.

Picking up where the tutorials left off so far...

If you haven't already begin by chopping up the video into sections (events) where the ambient light is weak to strong. You may end up with dozens to hundreds of events.

Drop a single filter on the first event. Probably color curves. Deliberately overcorrect the first key frame at one extreme of the curve, you know how, like in Photoshop. Now set the last keyframe, go to the other extreme. Play and carefully observe thw effect on the event as it sweeps the curve from the range you selected. Reset starting and end points to make less extreme adjustments.

There should be a sweet spot somewhere between the two extremes. Hit the pause or stop button, note the values. Reset the event so the sweet spot is the starting value. Match the curve to keep pase the any subtle shifts in the ambient lighting. Practice a little. Use what you learned to do the other events. The starting point should be the same as the ending point of the previous event to avoid making too abrupt changes. The idea is once you do it several times you'll get a feel where key frames should be set and use the filters to sweep up and down. As you gain experince you find you don't have to be as picky about seperate events. Repeat using the color corrector mostly for gamma levels and gain adjustments.