I am a more technical builder. Of all the tools, the one I would never throw away is my gram scale (0.01g x 500g), but tech building is certainly not for everyone.
Good advice above; keep notes, get familiar with the search function, ask questions one at a time and in separate posts.
My advice; don't throw lures away that don't work as these are your main learning tools, you have to figure out why. Keep them in a box or hang them on your wall of shame.
Welcome
Dave