be prepared to get your 'enthusiasm to throw some serious iron overhead' frustrated. if you want to learn proper technique, that is. you are probably strong enough to toss some iron up there okay, but it will take a while of humility to develop the technique that will enable you to throw some serious iron up there. if you decide to stick with it.
with powerlifting you get strength gains... beginners gains... linear progress initially.
with technique work you get more one step forward, two steps back, two steps forwards, half a step back, two steps forwards kinda progress. for a long time. perhaps forever lol.
really do hope that you enjoy it, though, and stick with it. welcome