Most woodworking projects have 3 parts or phases:
Everyone gets all excited about building a new project, some work from a sketch, some from detailed and measured plans, others just wing it. Those that wing it are usually pretty experienced and can visualize in their heads the construction and have done it so many time the details are just built in their minds. Construction details, like joints and structure, strength of materials, whether to add braces etc. all come with experience. You will gain experience and get better by just making more projects first hand or by watching others on videos or from reading, all of which are very worth while.
Finally, the last step in a project is applying the finish. You had better have practiced on some scraps way before you tackle the finish project or you will be in for some surprises. Then you'll be posting here .. how do I fix this finish ....?
Sharp tools and precise measurements are always critical to a successful project, so learn how to sharpen the tools that have straight edges like chisels and plane irons and leave the saw blades and router bits for the pros. Get a decent tri-square and framing square to check your joinery. I use a ball point pen to make lines because they are very fine and easy to read. When chiseling to a line, score it first with a sharp knife to prevent tear out.
You Tube is your friend at this point and it will even help way down the road because someone has already done what you are trying to do .... usually and they has posted their work.
Woodworking is not crafting, and while they have similarities, they aren't the same. Crafters don't build cabinets from sheet goods like plywood. However, they may make furniture from natural wood objects so there is a fine line. Live edge tables sorta meets in the middle where the natural look of the wood is preserved over having all straight lines and sharp edges.