Uhmmm - some advice, maybe neither good nor useful, but… in no particular order and please don’t take this as me ‘talking down’ to you -
You like the 1 fin fish you’ve got now? And were interested in the ( very well documented) Journey of a Quad thread? Well, maybe a quad fish then. Or whatever you’d like next, as has been said.
Make lots of templates. Check what you have done against your templates and do it often.
Use hand tools by preference. The surform, the rasp, the handsaw and hand plane. Make sure they are good and sharp.
It’s harder to screw up with hand tools and a moment’s inattention but with power tools one slip can make a helluva mess that you may not be able to salvage. When you have the hand tool methods understood it’s a far easier step to a power tool than trying to get the feel for the power tools and then everything else besides, all at once. All power tools are variations on some hand tool or other - the approach transfers nicely.
Glass-on fins are going to be easier to set for a beginner than boxes or plugs. In addition to the fact that if you get it a little wrong with a glassed on fin it’s correctable a whole lot easier than redoing a mis-routed plug or box.
Don’t go mad with color, graphics, pinlines and all that. It’s about the shape and the quality of the glassing first, second, third and all the way down the line. Get a few clear, well made boards done before you go to playing with colors and so on. The best paint job in the world won’t matter if it’s on a Yugo ( or Trabant, or Fiat, or…)
You will also find it is easier to do a good job of glassing ( early on) without the color, and the glassing, sanding, hotcoating, sanding, glossing, sanding and polishing are enough of a challenge.
Go light on your catalyst if you’re using polyester resin, if epoxy then try to pick a night on the cool end of the scale - that will let you do the glassing without having to race the resin to the finish. Pre-cooling your resin will help too, with either type.
Set things up so you are comfortable and the tools are easy to work with. It takes time to do this, but you will save time later on and turn out a better job too. Including lighting and so on - what you see well you will do well, especially if you’re doing it after your day job when your eyes are tired and your mind is a little numb.
When in doubt, stop and think about it. If you’re tired, call it a night. Going ahead when you’re not sure or worn down is how accidents happen, both to you and to your project-in-progress. It’s not like there’s a deadline, a promised delivery date or a penalty clause at work here, relax and have fun with it.
Now and then, take a night off from doing the work and have a nice…well, you’re in the UK… a nice warm beer and stare at it, plotting the rest of the job and thinking about how you might have done earlier stages better. Resist any temptations to pick up a tool of any kind; the bright idea you have after two beers isn’t that clever in the cold light of hangover, but do make notes to yourself.
hope that’s of use
doc…