Watch the Cliff
Too many people want to jump off the cliff and build their wings on the way down. That's fine but hold on there, bucko--and bucket. Don't get too far ahead of yourself. There must be a few fundamentals in place before-hand. I mean come on. Because then you'll have a whole bunch of blood and gore at the bottom of that mountain.
Sure. I think the saying is cool and jumping into something and figuring it out along the way is best, sometimes. But there may come a point when (usually just when your feet leave the solid ground) that you realize you messed up, wishing this was a Loony Toons cartoon as you arc down, about to make a puff of smoke in the arid soil below.
Eh, do I even know what I'm talking about? Maybe in my head. But I guess my point is, sure, go ahead and jump. But have a basic understanding of how you might build those wings on the way down and not just barge ahead like you are a WWE (I liked WWF better) wrestler and it's Saturday Night's Main Event. Those Saturday's were the best.