Hi good luck with scratch building. In simple terms you create your own kit! There is no mystery, you may need some extra tools I really enjoy cutting wood with a good scroll saw. There are opinions on these in the forum archives.
A good set square for accuracy a 1 metre steel rule, the list goes on, but a flat suitable solid building 'plank' is good.
If you wear varifocal glasses beware of the small angular distortion they have and get a Vee block for reference for right angles.
I use old cornflakes packets to make templates from the plans and test bulkheads by folding along centre line to check accuracy. With bulkheads you will need to extend the shape to a common point so that they can be positioned correctly in the 3 dimensional shape of the hull.
You might find wood rather expensive but do not use cheap wood / ply, as the saving against the time put into the model is not worth it. Of course you may be building in plastic etc.
When waterproofing paint both sides of all wood.
I buy fittings as needed.
Review the whole build process to the end. You will find that there are parts you can build in parallel with the hull etc, this will remove frustration while glue dries. Check out the glues you will need.
When boat is starting to take shape get or make a scale 'person' to help decide on steps and other small items.
It all does take longer but there is a lot of satisfaction.
If you are really really clever then schedule the construction of each part including estimated time. Then you can always find a 30 minute job to do. Or just look for small individual items that will need building.
Plan the installation of any RC and make sure you have access to any item that may need adjusting or replacement. Tiller etc.
I am sure other forum members will find more to say.
Good luck, Roy