Hi Sapphire and welcome to the Mayhem. It;s great that you are so keen on this great hobby. A few things to bear in mind -
1. The best modeller in the world started with their first model, and made a lot of mistakes along the way.
2. All of us still make mistakes on every model we build. (Well, I certainly do
) Experience and increasing skill simply allows you to fix (or hide) them more quickly.
3. Practice really does make, if not perfect, at least much better! Keep going.
And while I hope you enjoy Mayhem and keep us informed of your progress, you might find encouragement on Model Ship World
modelshipworld.com where the type of build you are enjoying is much more common than here. The kit build section has several build logs of the Swift and the Bounty.
Do let us know how you get on.
Happy modelling
Greg