Then I'll start you off.
1. If you're not sure about something. Ask.
2. You're gonna **** up... A LOT. Pretty sure getting better at woodworking just means you get better at hiding your mistakes lol.
3. always keep your scrap pieces around until you actually finish your project. Then before you start applying dye, stain, poly, or whatever your plans are for finishing said project, do it to your scraps first, just make sure you sand and prep your scrap pieces the exact same way you do your project first before applying your finish. It's a lot less frustrating to have to throw out a piece of scrap than it is to have to either totally resand your entire project or completely throw it out.
4. For the love of god, measure twice, cut once.